hamachi/yellowfin: Move the packet engine drivers

Move the packet engine drivers to drivers/net/ethernet/packetengines/
and the necessary Kconfig and Makefile changes.

CC: Donald Becker <becker@scyld.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 1952 deletions

diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c
deleted file mode 100644
index c274b3d..0000000
--- a/drivers/net/hamachi.c
+++ /dev/null
@@ -1,1952 +0,0 @@
-/* hamachi.c: A Packet Engines GNIC-II Gigabit Ethernet driver for Linux. */
-/*
-	Written 1998-2000 by Donald Becker.
-	Updates 2000 by Keith Underwood.
-
-	This software may be used and distributed according to the terms of
-	the GNU General Public License (GPL), incorporated herein by reference.
-	Drivers based on or derived from this code fall under the GPL and must
-	retain the authorship, copyright and license notice.  This file is not
-	a complete program and may only be used when the entire operating
-	system is licensed under the GPL.
-
-	The author may be reached as becker@scyld.com, or C/O
-	Scyld Computing Corporation
-	410 Severn Ave., Suite 210
-	Annapolis MD 21403
-
-	This driver is for the Packet Engines GNIC-II PCI Gigabit Ethernet
-	adapter.
-
-	Support and updates available at
-	http://www.scyld.com/network/hamachi.html
-	[link no longer provides useful info -jgarzik]
-	or
-	http://www.parl.clemson.edu/~keithu/hamachi.html
-
-*/
-
-#define DRV_NAME	"hamachi"
-#define DRV_VERSION	"2.1"
-#define DRV_RELDATE	"Sept 11, 2006"
-
-
-/* A few user-configurable values. */
-
-static int debug = 1;		/* 1 normal messages, 0 quiet .. 7 verbose.  */
-#define final_version
-#define hamachi_debug debug
-/* Maximum events (Rx packets, etc.) to handle at each interrupt. */
-static int max_interrupt_work = 40;
-static int mtu;
-/* Default values selected by testing on a dual processor PIII-450 */
-/* These six interrupt control parameters may be set directly when loading the
- * module, or through the rx_params and tx_params variables
- */
-static int max_rx_latency = 0x11;
-static int max_rx_gap = 0x05;
-static int min_rx_pkt = 0x18;
-static int max_tx_latency = 0x00;
-static int max_tx_gap = 0x00;
-static int min_tx_pkt = 0x30;
-
-/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
-   -Setting to > 1518 causes all frames to be copied
-	-Setting to 0 disables copies
-*/
-static int rx_copybreak;
-
-/* An override for the hardware detection of bus width.
-	Set to 1 to force 32 bit PCI bus detection.  Set to 4 to force 64 bit.
-	Add 2 to disable parity detection.
-*/
-static int force32;
-
-
-/* Used to pass the media type, etc.
-   These exist for driver interoperability.
-   No media types are currently defined.
-		- The lower 4 bits are reserved for the media type.
-		- The next three bits may be set to one of the following:
-			0x00000000 : Autodetect PCI bus
-			0x00000010 : Force 32 bit PCI bus
-			0x00000020 : Disable parity detection
-			0x00000040 : Force 64 bit PCI bus
-			Default is autodetect
-		- The next bit can be used to force half-duplex.  This is a bad
-		  idea since no known implementations implement half-duplex, and,
-		  in general, half-duplex for gigabit ethernet is a bad idea.
-			0x00000080 : Force half-duplex
-			Default is full-duplex.
-		- In the original driver, the ninth bit could be used to force
-		  full-duplex.  Maintain that for compatibility
-		   0x00000200 : Force full-duplex
-*/
-#define MAX_UNITS 8				/* More are supported, limit only on options */
-static int options[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-/* The Hamachi chipset supports 3 parameters each for Rx and Tx
- * interruput management.  Parameters will be loaded as specified into
- * the TxIntControl and RxIntControl registers.
- *
- * The registers are arranged as follows:
- *     23 - 16   15 -  8   7    -    0
- *    _________________________________
- *   | min_pkt | max_gap | max_latency |
- *    ---------------------------------
- *   min_pkt      : The minimum number of packets processed between
- *                  interrupts.
- *   max_gap      : The maximum inter-packet gap in units of 8.192 us
- *   max_latency  : The absolute time between interrupts in units of 8.192 us
- *
- */
-static int rx_params[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int tx_params[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-
-/* Operational parameters that are set at compile time. */
-
-/* Keep the ring sizes a power of two for compile efficiency.
-	The compiler will convert <unsigned>'%'<2^N> into a bit mask.
-   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, except for
-	excessive memory usage */
-/* Empirically it appears that the Tx ring needs to be a little bigger
-   for these Gbit adapters or you get into an overrun condition really
-   easily.  Also, things appear to work a bit better in back-to-back
-   configurations if the Rx ring is 8 times the size of the Tx ring
-*/
-#define TX_RING_SIZE	64
-#define RX_RING_SIZE	512
-#define TX_TOTAL_SIZE	TX_RING_SIZE*sizeof(struct hamachi_desc)
-#define RX_TOTAL_SIZE	RX_RING_SIZE*sizeof(struct hamachi_desc)
-
-/*
- * Enable netdev_ioctl.  Added interrupt coalescing parameter adjustment.
- * 2/19/99 Pete Wyckoff <wyckoff@ca.sandia.gov>
- */
-
-/* play with 64-bit addrlen; seems to be a teensy bit slower  --pw */
-/* #define ADDRLEN 64 */
-
-/*
- * RX_CHECKSUM turns on card-generated receive checksum generation for
- *   TCP and UDP packets.  Otherwise the upper layers do the calculation.
- * 3/10/1999 Pete Wyckoff <wyckoff@ca.sandia.gov>
- */
-#define RX_CHECKSUM
-
-/* Operational parameters that usually are not changed. */
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT  (5*HZ)
-
-#include <linux/capability.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/time.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/ip.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
-
-#include <asm/uaccess.h>
-#include <asm/processor.h>	/* Processor type for cache alignment. */
-#include <asm/io.h>
-#include <asm/unaligned.h>
-#include <asm/cache.h>
-
-static const char version[] __devinitconst =
-KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "  Written by Donald Becker\n"
-"   Some modifications by Eric kasten <kasten@nscl.msu.edu>\n"
-"   Further modifications by Keith Underwood <keithu@parl.clemson.edu>\n";
-
-
-/* IP_MF appears to be only defined in <netinet/ip.h>, however,
-   we need it for hardware checksumming support.  FYI... some of
-   the definitions in <netinet/ip.h> conflict/duplicate those in
-   other linux headers causing many compiler warnings.
-*/
-#ifndef IP_MF
-  #define IP_MF 0x2000   /* IP more frags from <netinet/ip.h> */
-#endif
-
-/* Define IP_OFFSET to be IPOPT_OFFSET */
-#ifndef IP_OFFSET
-  #ifdef IPOPT_OFFSET
-    #define IP_OFFSET IPOPT_OFFSET
-  #else
-    #define IP_OFFSET 2
-  #endif
-#endif
-
-#define RUN_AT(x) (jiffies + (x))
-
-#ifndef ADDRLEN
-#define ADDRLEN 32
-#endif
-
-/* Condensed bus+endian portability operations. */
-#if ADDRLEN == 64
-#define cpu_to_leXX(addr)	cpu_to_le64(addr)
-#define leXX_to_cpu(addr)	le64_to_cpu(addr)
-#else
-#define cpu_to_leXX(addr)	cpu_to_le32(addr)
-#define leXX_to_cpu(addr)	le32_to_cpu(addr)
-#endif
-
-
-/*
-				Theory of Operation
-
-I. Board Compatibility
-
-This device driver is designed for the Packet Engines "Hamachi"
-Gigabit Ethernet chip.  The only PCA currently supported is the GNIC-II 64-bit
-66Mhz PCI card.
-
-II. Board-specific settings
-
-No jumpers exist on the board.  The chip supports software correction of
-various motherboard wiring errors, however this driver does not support
-that feature.
-
-III. Driver operation
-
-IIIa. Ring buffers
-
-The Hamachi uses a typical descriptor based bus-master architecture.
-The descriptor list is similar to that used by the Digital Tulip.
-This driver uses two statically allocated fixed-size descriptor lists
-formed into rings by a branch from the final descriptor to the beginning of
-the list.  The ring sizes are set at compile time by RX/TX_RING_SIZE.
-
-This driver uses a zero-copy receive and transmit scheme similar my other
-network drivers.
-The driver allocates full frame size skbuffs for the Rx ring buffers at
-open() time and passes the skb->data field to the Hamachi 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.  Gigabit cards are typically used on generously configured machines
-and the underfilled buffers have negligible impact compared to the benefit of
-a single allocation size, so the default value of zero results in never
-copying packets.
-
-IIIb/c. Transmit/Receive Structure
-
-The Rx and Tx descriptor structure are straight-forward, with no historical
-baggage that must be explained.  Unlike the awkward DBDMA structure, there
-are no unused fields or option bits that had only one allowable setting.
-
-Two details should be noted about the descriptors: The chip supports both 32
-bit and 64 bit address structures, and the length field is overwritten on
-the receive descriptors.  The descriptor length is set in the control word
-for each channel. The development driver uses 32 bit addresses only, however
-64 bit addresses may be enabled for 64 bit architectures e.g. the Alpha.
-
-IIId. Synchronization
-
-This driver is very similar to my other network drivers.
-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 'hmp->tx_full' flag.
-
-The interrupt handler has exclusive control over the Rx ring and records stats
-from the Tx ring.  After reaping the stats, it marks the Tx queue entry as
-empty by incrementing the dirty_tx mark. Iff the 'hmp->tx_full' flag is set, it
-clears both the tx_full and tbusy flags.
-
-IV. Notes
-
-Thanks to Kim Stearns of Packet Engines for providing a pair of GNIC-II boards.
-
-IVb. References
-
-Hamachi Engineering Design Specification, 5/15/97
-(Note: This version was marked "Confidential".)
-
-IVc. Errata
-
-None noted.
-
-V.  Recent Changes
-
-01/15/1999 EPK  Enlargement of the TX and RX ring sizes.  This appears
-    to help avoid some stall conditions -- this needs further research.
-
-01/15/1999 EPK  Creation of the hamachi_tx function.  This function cleans
-    the Tx ring and is called from hamachi_start_xmit (this used to be
-    called from hamachi_interrupt but it tends to delay execution of the
-    interrupt handler and thus reduce bandwidth by reducing the latency
-    between hamachi_rx()'s).  Notably, some modification has been made so
-    that the cleaning loop checks only to make sure that the DescOwn bit
-    isn't set in the status flag since the card is not required
-    to set the entire flag to zero after processing.
-
-01/15/1999 EPK In the hamachi_start_tx function, the Tx ring full flag is
-    checked before attempting to add a buffer to the ring.  If the ring is full
-    an attempt is made to free any dirty buffers and thus find space for
-    the new buffer or the function returns non-zero which should case the
-    scheduler to reschedule the buffer later.
-
-01/15/1999 EPK Some adjustments were made to the chip initialization.
-    End-to-end flow control should now be fully active and the interrupt
-    algorithm vars have been changed.  These could probably use further tuning.
-
-01/15/1999 EPK Added the max_{rx,tx}_latency options.  These are used to
-    set the rx and tx latencies for the Hamachi interrupts. If you're having
-    problems with network stalls, try setting these to higher values.
-    Valid values are 0x00 through 0xff.
-
-01/15/1999 EPK In general, the overall bandwidth has increased and
-    latencies are better (sometimes by a factor of 2).  Stalls are rare at
-    this point, however there still appears to be a bug somewhere between the
-    hardware and driver.  TCP checksum errors under load also appear to be
-    eliminated at this point.
-
-01/18/1999 EPK Ensured that the DescEndRing bit was being set on both the
-    Rx and Tx rings.  This appears to have been affecting whether a particular
-    peer-to-peer connection would hang under high load.  I believe the Rx
-    rings was typically getting set correctly, but the Tx ring wasn't getting
-    the DescEndRing bit set during initialization. ??? Does this mean the
-    hamachi card is using the DescEndRing in processing even if a particular
-    slot isn't in use -- hypothetically, the card might be searching the
-    entire Tx ring for slots with the DescOwn bit set and then processing
-    them.  If the DescEndRing bit isn't set, then it might just wander off
-    through memory until it hits a chunk of data with that bit set
-    and then looping back.
-
-02/09/1999 EPK Added Michel Mueller's TxDMA Interrupt and Tx-timeout
-    problem (TxCmd and RxCmd need only to be set when idle or stopped.
-
-02/09/1999 EPK Added code to check/reset dev->tbusy in hamachi_interrupt.
-    (Michel Mueller pointed out the ``permanently busy'' potential
-    problem here).
-
-02/22/1999 EPK Added Pete Wyckoff's ioctl to control the Tx/Rx latencies.
-
-02/23/1999 EPK Verified that the interrupt status field bits for Tx were
-    incorrectly defined and corrected (as per Michel Mueller).
-
-02/23/1999 EPK Corrected the Tx full check to check that at least 4 slots
-    were available before reseting the tbusy and tx_full flags
-    (as per Michel Mueller).
-
-03/11/1999 EPK Added Pete Wyckoff's hardware checksumming support.
-
-12/31/1999 KDU Cleaned up assorted things and added Don's code to force
-32 bit.
-
-02/20/2000 KDU Some of the control was just plain odd.  Cleaned up the
-hamachi_start_xmit() and hamachi_interrupt() code.  There is still some
-re-structuring I would like to do.
-
-03/01/2000 KDU Experimenting with a WIDE range of interrupt mitigation
-parameters on a dual P3-450 setup yielded the new default interrupt
-mitigation parameters.  Tx should interrupt VERY infrequently due to
-Eric's scheme.  Rx should be more often...
-
-03/13/2000 KDU Added a patch to make the Rx Checksum code interact
-nicely with non-linux machines.
-
-03/13/2000 KDU Experimented with some of the configuration values:
-
-	-It seems that enabling PCI performance commands for descriptors
-	(changing RxDMACtrl and TxDMACtrl lower nibble from 5 to D) has minimal
-	performance impact for any of my tests. (ttcp, netpipe, netperf)  I will
-	leave them that way until I hear further feedback.
-
-	-Increasing the PCI_LATENCY_TIMER to 130
-	(2 + (burst size of 128 * (0 wait states + 1))) seems to slightly
-	degrade performance.  Leaving default at 64 pending further information.
-
-03/14/2000 KDU Further tuning:
-
-	-adjusted boguscnt in hamachi_rx() to depend on interrupt
-	mitigation parameters chosen.
-
-	-Selected a set of interrupt parameters based on some extensive testing.
-	These may change with more testing.
-
-TO DO:
-
--Consider borrowing from the acenic driver code to check PCI_COMMAND for
-PCI_COMMAND_INVALIDATE.  Set maximum burst size to cache line size in
-that case.
-
--fix the reset procedure.  It doesn't quite work.
-*/
-
-/* A few values that may be tweaked. */
-/* Size of each temporary Rx buffer, calculated as:
- * 1518 bytes (ethernet packet) + 2 bytes (to get 8 byte alignment for
- * the card) + 8 bytes of status info + 8 bytes for the Rx Checksum
- */
-#define PKT_BUF_SZ		1536
-
-/* For now, this is going to be set to the maximum size of an ethernet
- * packet.  Eventually, we may want to make it a variable that is
- * related to the MTU
- */
-#define MAX_FRAME_SIZE  1518
-
-/* The rest of these values should never change. */
-
-static void hamachi_timer(unsigned long data);
-
-enum capability_flags {CanHaveMII=1, };
-static const struct chip_info {
-	u16	vendor_id, device_id, device_id_mask, pad;
-	const char *name;
-	void (*media_timer)(unsigned long data);
-	int flags;
-} chip_tbl[] = {
-	{0x1318, 0x0911, 0xffff, 0, "Hamachi GNIC-II", hamachi_timer, 0},
-	{0,},
-};
-
-/* Offsets to the Hamachi registers.  Various sizes. */
-enum hamachi_offsets {
-	TxDMACtrl=0x00, TxCmd=0x04, TxStatus=0x06, TxPtr=0x08, TxCurPtr=0x10,
-	RxDMACtrl=0x20, RxCmd=0x24, RxStatus=0x26, RxPtr=0x28, RxCurPtr=0x30,
-	PCIClkMeas=0x060, MiscStatus=0x066, ChipRev=0x68, ChipReset=0x06B,
-	LEDCtrl=0x06C, VirtualJumpers=0x06D, GPIO=0x6E,
-	TxChecksum=0x074, RxChecksum=0x076,
-	TxIntrCtrl=0x078, RxIntrCtrl=0x07C,
-	InterruptEnable=0x080, InterruptClear=0x084, IntrStatus=0x088,
-	EventStatus=0x08C,
-	MACCnfg=0x0A0, FrameGap0=0x0A2, FrameGap1=0x0A4,
-	/* See enum MII_offsets below. */
-	MACCnfg2=0x0B0, RxDepth=0x0B8, FlowCtrl=0x0BC, MaxFrameSize=0x0CE,
-	AddrMode=0x0D0, StationAddr=0x0D2,
-	/* Gigabit AutoNegotiation. */
-	ANCtrl=0x0E0, ANStatus=0x0E2, ANXchngCtrl=0x0E4, ANAdvertise=0x0E8,
-	ANLinkPartnerAbility=0x0EA,
-	EECmdStatus=0x0F0, EEData=0x0F1, EEAddr=0x0F2,
-	FIFOcfg=0x0F8,
-};
-
-/* Offsets to the MII-mode registers. */
-enum MII_offsets {
-	MII_Cmd=0xA6, MII_Addr=0xA8, MII_Wr_Data=0xAA, MII_Rd_Data=0xAC,
-	MII_Status=0xAE,
-};
-
-/* Bits in the interrupt status/mask registers. */
-enum intr_status_bits {
-	IntrRxDone=0x01, IntrRxPCIFault=0x02, IntrRxPCIErr=0x04,
-	IntrTxDone=0x100, IntrTxPCIFault=0x200, IntrTxPCIErr=0x400,
-	LinkChange=0x10000, NegotiationChange=0x20000, StatsMax=0x40000, };
-
-/* The Hamachi Rx and Tx buffer descriptors. */
-struct hamachi_desc {
-	__le32 status_n_length;
-#if ADDRLEN == 64
-	u32 pad;
-	__le64 addr;
-#else
-	__le32 addr;
-#endif
-};
-
-/* Bits in hamachi_desc.status_n_length */
-enum desc_status_bits {
-	DescOwn=0x80000000, DescEndPacket=0x40000000, DescEndRing=0x20000000,
-	DescIntr=0x10000000,
-};
-
-#define PRIV_ALIGN	15  			/* Required alignment mask */
-#define MII_CNT		4
-struct hamachi_private {
-	/* Descriptor rings first for alignment.  Tx requires a second descriptor
-	   for status. */
-	struct hamachi_desc *rx_ring;
-	struct hamachi_desc *tx_ring;
-	struct sk_buff* rx_skbuff[RX_RING_SIZE];
-	struct sk_buff* tx_skbuff[TX_RING_SIZE];
-	dma_addr_t tx_ring_dma;
-	dma_addr_t rx_ring_dma;
-	struct timer_list timer;		/* Media selection timer. */
-	/* Frequently used and paired value: keep adjacent for cache effect. */
-	spinlock_t lock;
-	int chip_id;
-	unsigned int cur_rx, dirty_rx;		/* Producer/consumer ring indices */
-	unsigned int cur_tx, dirty_tx;
-	unsigned int rx_buf_sz;			/* Based on MTU+slack. */
-	unsigned int tx_full:1;			/* The Tx queue is full. */
-	unsigned int duplex_lock:1;
-	unsigned int default_port:4;		/* Last dev->if_port value. */
-	/* MII transceiver section. */
-	int mii_cnt;								/* MII device addresses. */
-	struct mii_if_info mii_if;		/* MII lib hooks/info */
-	unsigned char phys[MII_CNT];		/* MII device addresses, only first one used. */
-	u32 rx_int_var, tx_int_var;	/* interrupt control variables */
-	u32 option;							/* Hold on to a copy of the options */
-	struct pci_dev *pci_dev;
-	void __iomem *base;
-};
-
-MODULE_AUTHOR("Donald Becker <becker@scyld.com>, Eric Kasten <kasten@nscl.msu.edu>, Keith Underwood <keithu@parl.clemson.edu>");
-MODULE_DESCRIPTION("Packet Engines 'Hamachi' GNIC-II Gigabit Ethernet driver");
-MODULE_LICENSE("GPL");
-
-module_param(max_interrupt_work, int, 0);
-module_param(mtu, int, 0);
-module_param(debug, int, 0);
-module_param(min_rx_pkt, int, 0);
-module_param(max_rx_gap, int, 0);
-module_param(max_rx_latency, int, 0);
-module_param(min_tx_pkt, int, 0);
-module_param(max_tx_gap, int, 0);
-module_param(max_tx_latency, int, 0);
-module_param(rx_copybreak, int, 0);
-module_param_array(rx_params, int, NULL, 0);
-module_param_array(tx_params, int, NULL, 0);
-module_param_array(options, int, NULL, 0);
-module_param_array(full_duplex, int, NULL, 0);
-module_param(force32, int, 0);
-MODULE_PARM_DESC(max_interrupt_work, "GNIC-II maximum events handled per interrupt");
-MODULE_PARM_DESC(mtu, "GNIC-II MTU (all boards)");
-MODULE_PARM_DESC(debug, "GNIC-II debug level (0-7)");
-MODULE_PARM_DESC(min_rx_pkt, "GNIC-II minimum Rx packets processed between interrupts");
-MODULE_PARM_DESC(max_rx_gap, "GNIC-II maximum Rx inter-packet gap in 8.192 microsecond units");
-MODULE_PARM_DESC(max_rx_latency, "GNIC-II time between Rx interrupts in 8.192 microsecond units");
-MODULE_PARM_DESC(min_tx_pkt, "GNIC-II minimum Tx packets processed between interrupts");
-MODULE_PARM_DESC(max_tx_gap, "GNIC-II maximum Tx inter-packet gap in 8.192 microsecond units");
-MODULE_PARM_DESC(max_tx_latency, "GNIC-II time between Tx interrupts in 8.192 microsecond units");
-MODULE_PARM_DESC(rx_copybreak, "GNIC-II copy breakpoint for copy-only-tiny-frames");
-MODULE_PARM_DESC(rx_params, "GNIC-II min_rx_pkt+max_rx_gap+max_rx_latency");
-MODULE_PARM_DESC(tx_params, "GNIC-II min_tx_pkt+max_tx_gap+max_tx_latency");
-MODULE_PARM_DESC(options, "GNIC-II Bits 0-3: media type, bits 4-6: as force32, bit 7: half duplex, bit 9 full duplex");
-MODULE_PARM_DESC(full_duplex, "GNIC-II full duplex setting(s) (1)");
-MODULE_PARM_DESC(force32, "GNIC-II: Bit 0: 32 bit PCI, bit 1: disable parity, bit 2: 64 bit PCI (all boards)");
-
-static int read_eeprom(void __iomem *ioaddr, int location);
-static int mdio_read(struct net_device *dev, int phy_id, int location);
-static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
-static int hamachi_open(struct net_device *dev);
-static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static void hamachi_timer(unsigned long data);
-static void hamachi_tx_timeout(struct net_device *dev);
-static void hamachi_init_ring(struct net_device *dev);
-static netdev_tx_t hamachi_start_xmit(struct sk_buff *skb,
-				      struct net_device *dev);
-static irqreturn_t hamachi_interrupt(int irq, void *dev_instance);
-static int hamachi_rx(struct net_device *dev);
-static inline int hamachi_tx(struct net_device *dev);
-static void hamachi_error(struct net_device *dev, int intr_status);
-static int hamachi_close(struct net_device *dev);
-static struct net_device_stats *hamachi_get_stats(struct net_device *dev);
-static void set_rx_mode(struct net_device *dev);
-static const struct ethtool_ops ethtool_ops;
-static const struct ethtool_ops ethtool_ops_no_mii;
-
-static const struct net_device_ops hamachi_netdev_ops = {
-	.ndo_open		= hamachi_open,
-	.ndo_stop		= hamachi_close,
-	.ndo_start_xmit		= hamachi_start_xmit,
-	.ndo_get_stats		= hamachi_get_stats,
-	.ndo_set_multicast_list	= set_rx_mode,
-	.ndo_change_mtu		= eth_change_mtu,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address 	= eth_mac_addr,
-	.ndo_tx_timeout		= hamachi_tx_timeout,
-	.ndo_do_ioctl		= netdev_ioctl,
-};
-
-
-static int __devinit hamachi_init_one (struct pci_dev *pdev,
-				    const struct pci_device_id *ent)
-{
-	struct hamachi_private *hmp;
-	int option, i, rx_int_var, tx_int_var, boguscnt;
-	int chip_id = ent->driver_data;
-	int irq;
-	void __iomem *ioaddr;
-	unsigned long base;
-	static int card_idx;
-	struct net_device *dev;
-	void *ring_space;
-	dma_addr_t ring_dma;
-	int ret = -ENOMEM;
-
-/* when built into the kernel, we only print version if device is found */
-#ifndef MODULE
-	static int printed_version;
-	if (!printed_version++)
-		printk(version);
-#endif
-
-	if (pci_enable_device(pdev)) {
-		ret = -EIO;
-		goto err_out;
-	}
-
-	base = pci_resource_start(pdev, 0);
-#ifdef __alpha__				/* Really "64 bit addrs" */
-	base |= (pci_resource_start(pdev, 1) << 32);
-#endif
-
-	pci_set_master(pdev);
-
-	i = pci_request_regions(pdev, DRV_NAME);
-	if (i)
-		return i;
-
-	irq = pdev->irq;
-	ioaddr = ioremap(base, 0x400);
-	if (!ioaddr)
-		goto err_out_release;
-
-	dev = alloc_etherdev(sizeof(struct hamachi_private));
-	if (!dev)
-		goto err_out_iounmap;
-
-	SET_NETDEV_DEV(dev, &pdev->dev);
-
-	for (i = 0; i < 6; i++)
-		dev->dev_addr[i] = 1 ? read_eeprom(ioaddr, 4 + i)
-			: readb(ioaddr + StationAddr + i);
-
-#if ! defined(final_version)
-	if (hamachi_debug > 4)
-		for (i = 0; i < 0x10; i++)
-			printk("%2.2x%s",
-				   read_eeprom(ioaddr, i), i % 16 != 15 ? " " : "\n");
-#endif
-
-	hmp = netdev_priv(dev);
-	spin_lock_init(&hmp->lock);
-
-	hmp->mii_if.dev = dev;
-	hmp->mii_if.mdio_read = mdio_read;
-	hmp->mii_if.mdio_write = mdio_write;
-	hmp->mii_if.phy_id_mask = 0x1f;
-	hmp->mii_if.reg_num_mask = 0x1f;
-
-	ring_space = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
-	if (!ring_space)
-		goto err_out_cleardev;
-	hmp->tx_ring = ring_space;
-	hmp->tx_ring_dma = ring_dma;
-
-	ring_space = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
-	if (!ring_space)
-		goto err_out_unmap_tx;
-	hmp->rx_ring = ring_space;
-	hmp->rx_ring_dma = ring_dma;
-
-	/* Check for options being passed in */
-	option = card_idx < MAX_UNITS ? options[card_idx] : 0;
-	if (dev->mem_start)
-		option = dev->mem_start;
-
-	/* If the bus size is misidentified, do the following. */
-	force32 = force32 ? force32 :
-		((option  >= 0) ? ((option & 0x00000070) >> 4) : 0 );
-	if (force32)
-		writeb(force32, ioaddr + VirtualJumpers);
-
-	/* Hmmm, do we really need to reset the chip???. */
-	writeb(0x01, ioaddr + ChipReset);
-
-	/* After a reset, the clock speed measurement of the PCI bus will not
-	 * be valid for a moment.  Wait for a little while until it is.  If
-	 * it takes more than 10ms, forget it.
-	 */
-	udelay(10);
-	i = readb(ioaddr + PCIClkMeas);
-	for (boguscnt = 0; (!(i & 0x080)) && boguscnt < 1000; boguscnt++){
-		udelay(10);
-		i = readb(ioaddr + PCIClkMeas);
-	}
-
-	hmp->base = ioaddr;
-	dev->base_addr = (unsigned long)ioaddr;
-	dev->irq = irq;
-	pci_set_drvdata(pdev, dev);
-
-	hmp->chip_id = chip_id;
-	hmp->pci_dev = pdev;
-
-	/* The lower four bits are the media type. */
-	if (option > 0) {
-		hmp->option = option;
-		if (option & 0x200)
-			hmp->mii_if.full_duplex = 1;
-		else if (option & 0x080)
-			hmp->mii_if.full_duplex = 0;
-		hmp->default_port = option & 15;
-		if (hmp->default_port)
-			hmp->mii_if.force_media = 1;
-	}
-	if (card_idx < MAX_UNITS  &&  full_duplex[card_idx] > 0)
-		hmp->mii_if.full_duplex = 1;
-
-	/* lock the duplex mode if someone specified a value */
-	if (hmp->mii_if.full_duplex || (option & 0x080))
-		hmp->duplex_lock = 1;
-
-	/* Set interrupt tuning parameters */
-	max_rx_latency = max_rx_latency & 0x00ff;
-	max_rx_gap = max_rx_gap & 0x00ff;
-	min_rx_pkt = min_rx_pkt & 0x00ff;
-	max_tx_latency = max_tx_latency & 0x00ff;
-	max_tx_gap = max_tx_gap & 0x00ff;
-	min_tx_pkt = min_tx_pkt & 0x00ff;
-
-	rx_int_var = card_idx < MAX_UNITS ? rx_params[card_idx] : -1;
-	tx_int_var = card_idx < MAX_UNITS ? tx_params[card_idx] : -1;
-	hmp->rx_int_var = rx_int_var >= 0 ? rx_int_var :
-		(min_rx_pkt << 16 | max_rx_gap << 8 | max_rx_latency);
-	hmp->tx_int_var = tx_int_var >= 0 ? tx_int_var :
-		(min_tx_pkt << 16 | max_tx_gap << 8 | max_tx_latency);
-
-
-	/* The Hamachi-specific entries in the device structure. */
-	dev->netdev_ops = &hamachi_netdev_ops;
-	if (chip_tbl[hmp->chip_id].flags & CanHaveMII)
-		SET_ETHTOOL_OPS(dev, &ethtool_ops);
-	else
-		SET_ETHTOOL_OPS(dev, &ethtool_ops_no_mii);
-	dev->watchdog_timeo = TX_TIMEOUT;
-	if (mtu)
-		dev->mtu = mtu;
-
-	i = register_netdev(dev);
-	if (i) {
-		ret = i;
-		goto err_out_unmap_rx;
-	}
-
-	printk(KERN_INFO "%s: %s type %x at %p, %pM, IRQ %d.\n",
-		   dev->name, chip_tbl[chip_id].name, readl(ioaddr + ChipRev),
-		   ioaddr, dev->dev_addr, irq);
-	i = readb(ioaddr + PCIClkMeas);
-	printk(KERN_INFO "%s:  %d-bit %d Mhz PCI bus (%d), Virtual Jumpers "
-		   "%2.2x, LPA %4.4x.\n",
-		   dev->name, readw(ioaddr + MiscStatus) & 1 ? 64 : 32,
-		   i ? 2000/(i&0x7f) : 0, i&0x7f, (int)readb(ioaddr + VirtualJumpers),
-		   readw(ioaddr + ANLinkPartnerAbility));
-
-	if (chip_tbl[hmp->chip_id].flags & CanHaveMII) {
-		int phy, phy_idx = 0;
-		for (phy = 0; phy < 32 && phy_idx < MII_CNT; phy++) {
-			int mii_status = mdio_read(dev, phy, MII_BMSR);
-			if (mii_status != 0xffff  &&
-				mii_status != 0x0000) {
-				hmp->phys[phy_idx++] = phy;
-				hmp->mii_if.advertising = mdio_read(dev, phy, MII_ADVERTISE);
-				printk(KERN_INFO "%s: MII PHY found at address %d, status "
-					   "0x%4.4x advertising %4.4x.\n",
-					   dev->name, phy, mii_status, hmp->mii_if.advertising);
-			}
-		}
-		hmp->mii_cnt = phy_idx;
-		if (hmp->mii_cnt > 0)
-			hmp->mii_if.phy_id = hmp->phys[0];
-		else
-			memset(&hmp->mii_if, 0, sizeof(hmp->mii_if));
-	}
-	/* Configure gigabit autonegotiation. */
-	writew(0x0400, ioaddr + ANXchngCtrl);	/* Enable legacy links. */
-	writew(0x08e0, ioaddr + ANAdvertise);	/* Set our advertise word. */
-	writew(0x1000, ioaddr + ANCtrl);			/* Enable negotiation */
-
-	card_idx++;
-	return 0;
-
-err_out_unmap_rx:
-	pci_free_consistent(pdev, RX_TOTAL_SIZE, hmp->rx_ring,
-		hmp->rx_ring_dma);
-err_out_unmap_tx:
-	pci_free_consistent(pdev, TX_TOTAL_SIZE, hmp->tx_ring,
-		hmp->tx_ring_dma);
-err_out_cleardev:
-	free_netdev (dev);
-err_out_iounmap:
-	iounmap(ioaddr);
-err_out_release:
-	pci_release_regions(pdev);
-err_out:
-	return ret;
-}
-
-static int __devinit read_eeprom(void __iomem *ioaddr, int location)
-{
-	int bogus_cnt = 1000;
-
-	/* We should check busy first - per docs -KDU */
-	while ((readb(ioaddr + EECmdStatus) & 0x40)  && --bogus_cnt > 0);
-	writew(location, ioaddr + EEAddr);
-	writeb(0x02, ioaddr + EECmdStatus);
-	bogus_cnt = 1000;
-	while ((readb(ioaddr + EECmdStatus) & 0x40)  && --bogus_cnt > 0);
-	if (hamachi_debug > 5)
-		printk("   EEPROM status is %2.2x after %d ticks.\n",
-			   (int)readb(ioaddr + EECmdStatus), 1000- bogus_cnt);
-	return readb(ioaddr + EEData);
-}
-
-/* MII Managemen Data I/O accesses.
-   These routines assume the MDIO controller is idle, and do not exit until
-   the command is finished. */
-
-static int mdio_read(struct net_device *dev, int phy_id, int location)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-	int i;
-
-	/* We should check busy first - per docs -KDU */
-	for (i = 10000; i >= 0; i--)
-		if ((readw(ioaddr + MII_Status) & 1) == 0)
-			break;
-	writew((phy_id<<8) + location, ioaddr + MII_Addr);
-	writew(0x0001, ioaddr + MII_Cmd);
-	for (i = 10000; i >= 0; i--)
-		if ((readw(ioaddr + MII_Status) & 1) == 0)
-			break;
-	return readw(ioaddr + MII_Rd_Data);
-}
-
-static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-	int i;
-
-	/* We should check busy first - per docs -KDU */
-	for (i = 10000; i >= 0; i--)
-		if ((readw(ioaddr + MII_Status) & 1) == 0)
-			break;
-	writew((phy_id<<8) + location, ioaddr + MII_Addr);
-	writew(value, ioaddr + MII_Wr_Data);
-
-	/* Wait for the command to finish. */
-	for (i = 10000; i >= 0; i--)
-		if ((readw(ioaddr + MII_Status) & 1) == 0)
-			break;
-}
-
-
-static int hamachi_open(struct net_device *dev)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-	int i;
-	u32 rx_int_var, tx_int_var;
-	u16 fifo_info;
-
-	i = request_irq(dev->irq, hamachi_interrupt, IRQF_SHARED, dev->name, dev);
-	if (i)
-		return i;
-
-	if (hamachi_debug > 1)
-		printk(KERN_DEBUG "%s: hamachi_open() irq %d.\n",
-			   dev->name, dev->irq);
-
-	hamachi_init_ring(dev);
-
-#if ADDRLEN == 64
-	/* writellll anyone ? */
-	writel(hmp->rx_ring_dma, ioaddr + RxPtr);
-	writel(hmp->rx_ring_dma >> 32, ioaddr + RxPtr + 4);
-	writel(hmp->tx_ring_dma, ioaddr + TxPtr);
-	writel(hmp->tx_ring_dma >> 32, ioaddr + TxPtr + 4);
-#else
-	writel(hmp->rx_ring_dma, ioaddr + RxPtr);
-	writel(hmp->tx_ring_dma, ioaddr + TxPtr);
-#endif
-
-	/* TODO:  It would make sense to organize this as words since the card
-	 * documentation does. -KDU
-	 */
-	for (i = 0; i < 6; i++)
-		writeb(dev->dev_addr[i], ioaddr + StationAddr + i);
-
-	/* Initialize other registers: with so many this eventually this will
-	   converted to an offset/value list. */
-
-	/* Configure the FIFO */
-	fifo_info = (readw(ioaddr + GPIO) & 0x00C0) >> 6;
-	switch (fifo_info){
-		case 0 :
-			/* No FIFO */
-			writew(0x0000, ioaddr + FIFOcfg);
-			break;
-		case 1 :
-			/* Configure the FIFO for 512K external, 16K used for Tx. */
-			writew(0x0028, ioaddr + FIFOcfg);
-			break;
-		case 2 :
-			/* Configure the FIFO for 1024 external, 32K used for Tx. */
-			writew(0x004C, ioaddr + FIFOcfg);
-			break;
-		case 3 :
-			/* Configure the FIFO for 2048 external, 32K used for Tx. */
-			writew(0x006C, ioaddr + FIFOcfg);
-			break;
-		default :
-			printk(KERN_WARNING "%s:  Unsupported external memory config!\n",
-				dev->name);
-			/* Default to no FIFO */
-			writew(0x0000, ioaddr + FIFOcfg);
-			break;
-	}
-
-	if (dev->if_port == 0)
-		dev->if_port = hmp->default_port;
-
-
-	/* Setting the Rx mode will start the Rx process. */
-	/* If someone didn't choose a duplex, default to full-duplex */
-	if (hmp->duplex_lock != 1)
-		hmp->mii_if.full_duplex = 1;
-
-	/* always 1, takes no more time to do it */
-	writew(0x0001, ioaddr + RxChecksum);
-	writew(0x0000, ioaddr + TxChecksum);
-	writew(0x8000, ioaddr + MACCnfg); /* Soft reset the MAC */
-	writew(0x215F, ioaddr + MACCnfg);
-	writew(0x000C, ioaddr + FrameGap0);
-	/* WHAT?!?!?  Why isn't this documented somewhere? -KDU */
-	writew(0x1018, ioaddr + FrameGap1);
-	/* Why do we enable receives/transmits here? -KDU */
-	writew(0x0780, ioaddr + MACCnfg2); /* Upper 16 bits control LEDs. */
-	/* Enable automatic generation of flow control frames, period 0xffff. */
-	writel(0x0030FFFF, ioaddr + FlowCtrl);
-	writew(MAX_FRAME_SIZE, ioaddr + MaxFrameSize); 	/* dev->mtu+14 ??? */
-
-	/* Enable legacy links. */
-	writew(0x0400, ioaddr + ANXchngCtrl);	/* Enable legacy links. */
-	/* Initial Link LED to blinking red. */
-	writeb(0x03, ioaddr + LEDCtrl);
-
-	/* Configure interrupt mitigation.  This has a great effect on
-	   performance, so systems tuning should start here!. */
-
-	rx_int_var = hmp->rx_int_var;
-	tx_int_var = hmp->tx_int_var;
-
-	if (hamachi_debug > 1) {
-		printk("max_tx_latency: %d, max_tx_gap: %d, min_tx_pkt: %d\n",
-			tx_int_var & 0x00ff, (tx_int_var & 0x00ff00) >> 8,
-			(tx_int_var & 0x00ff0000) >> 16);
-		printk("max_rx_latency: %d, max_rx_gap: %d, min_rx_pkt: %d\n",
-			rx_int_var & 0x00ff, (rx_int_var & 0x00ff00) >> 8,
-			(rx_int_var & 0x00ff0000) >> 16);
-		printk("rx_int_var: %x, tx_int_var: %x\n", rx_int_var, tx_int_var);
-	}
-
-	writel(tx_int_var, ioaddr + TxIntrCtrl);
-	writel(rx_int_var, ioaddr + RxIntrCtrl);
-
-	set_rx_mode(dev);
-
-	netif_start_queue(dev);
-
-	/* Enable interrupts by setting the interrupt mask. */
-	writel(0x80878787, ioaddr + InterruptEnable);
-	writew(0x0000, ioaddr + EventStatus);	/* Clear non-interrupting events */
-
-	/* Configure and start the DMA channels. */
-	/* Burst sizes are in the low three bits: size = 4<<(val&7) */
-#if ADDRLEN == 64
-	writew(0x005D, ioaddr + RxDMACtrl); 		/* 128 dword bursts */
-	writew(0x005D, ioaddr + TxDMACtrl);
-#else
-	writew(0x001D, ioaddr + RxDMACtrl);
-	writew(0x001D, ioaddr + TxDMACtrl);
-#endif
-	writew(0x0001, ioaddr + RxCmd);
-
-	if (hamachi_debug > 2) {
-		printk(KERN_DEBUG "%s: Done hamachi_open(), status: Rx %x Tx %x.\n",
-			   dev->name, readw(ioaddr + RxStatus), readw(ioaddr + TxStatus));
-	}
-	/* Set the timer to check for link beat. */
-	init_timer(&hmp->timer);
-	hmp->timer.expires = RUN_AT((24*HZ)/10);			/* 2.4 sec. */
-	hmp->timer.data = (unsigned long)dev;
-	hmp->timer.function = hamachi_timer;				/* timer handler */
-	add_timer(&hmp->timer);
-
-	return 0;
-}
-
-static inline int hamachi_tx(struct net_device *dev)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-
-	/* Update the dirty pointer until we find an entry that is
-		still owned by the card */
-	for (; hmp->cur_tx - hmp->dirty_tx > 0; hmp->dirty_tx++) {
-		int entry = hmp->dirty_tx % TX_RING_SIZE;
-		struct sk_buff *skb;
-
-		if (hmp->tx_ring[entry].status_n_length & cpu_to_le32(DescOwn))
-			break;
-		/* Free the original skb. */
-		skb = hmp->tx_skbuff[entry];
-		if (skb) {
-			pci_unmap_single(hmp->pci_dev,
-				leXX_to_cpu(hmp->tx_ring[entry].addr),
-				skb->len, PCI_DMA_TODEVICE);
-			dev_kfree_skb(skb);
-			hmp->tx_skbuff[entry] = NULL;
-		}
-		hmp->tx_ring[entry].status_n_length = 0;
-		if (entry >= TX_RING_SIZE-1)
-			hmp->tx_ring[TX_RING_SIZE-1].status_n_length |=
-				cpu_to_le32(DescEndRing);
-		dev->stats.tx_packets++;
-	}
-
-	return 0;
-}
-
-static void hamachi_timer(unsigned long data)
-{
-	struct net_device *dev = (struct net_device *)data;
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-	int next_tick = 10*HZ;
-
-	if (hamachi_debug > 2) {
-		printk(KERN_INFO "%s: Hamachi Autonegotiation status %4.4x, LPA "
-			   "%4.4x.\n", dev->name, readw(ioaddr + ANStatus),
-			   readw(ioaddr + ANLinkPartnerAbility));
-		printk(KERN_INFO "%s: Autonegotiation regs %4.4x %4.4x %4.4x "
-		       "%4.4x %4.4x %4.4x.\n", dev->name,
-		       readw(ioaddr + 0x0e0),
-		       readw(ioaddr + 0x0e2),
-		       readw(ioaddr + 0x0e4),
-		       readw(ioaddr + 0x0e6),
-		       readw(ioaddr + 0x0e8),
-		       readw(ioaddr + 0x0eA));
-	}
-	/* We could do something here... nah. */
-	hmp->timer.expires = RUN_AT(next_tick);
-	add_timer(&hmp->timer);
-}
-
-static void hamachi_tx_timeout(struct net_device *dev)
-{
-	int i;
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-
-	printk(KERN_WARNING "%s: Hamachi transmit timed out, status %8.8x,"
-		   " resetting...\n", dev->name, (int)readw(ioaddr + TxStatus));
-
-	{
-		printk(KERN_DEBUG "  Rx ring %p: ", hmp->rx_ring);
-		for (i = 0; i < RX_RING_SIZE; i++)
-			printk(KERN_CONT " %8.8x",
-			       le32_to_cpu(hmp->rx_ring[i].status_n_length));
-		printk(KERN_CONT "\n");
-		printk(KERN_DEBUG"  Tx ring %p: ", hmp->tx_ring);
-		for (i = 0; i < TX_RING_SIZE; i++)
-			printk(KERN_CONT " %4.4x",
-			       le32_to_cpu(hmp->tx_ring[i].status_n_length));
-		printk(KERN_CONT "\n");
-	}
-
-	/* Reinit the hardware and make sure the Rx and Tx processes
-		are up and running.
-	 */
-	dev->if_port = 0;
-	/* The right way to do Reset. -KDU
-	 *		-Clear OWN bit in all Rx/Tx descriptors
-	 *		-Wait 50 uS for channels to go idle
-	 *		-Turn off MAC receiver
-	 *		-Issue Reset
-	 */
-
-	for (i = 0; i < RX_RING_SIZE; i++)
-		hmp->rx_ring[i].status_n_length &= cpu_to_le32(~DescOwn);
-
-	/* Presume that all packets in the Tx queue are gone if we have to
-	 * re-init the hardware.
-	 */
-	for (i = 0; i < TX_RING_SIZE; i++){
-		struct sk_buff *skb;
-
-		if (i >= TX_RING_SIZE - 1)
-			hmp->tx_ring[i].status_n_length =
-				cpu_to_le32(DescEndRing) |
-				(hmp->tx_ring[i].status_n_length &
-				 cpu_to_le32(0x0000ffff));
-		else
-			hmp->tx_ring[i].status_n_length &= cpu_to_le32(0x0000ffff);
-		skb = hmp->tx_skbuff[i];
-		if (skb){
-			pci_unmap_single(hmp->pci_dev, leXX_to_cpu(hmp->tx_ring[i].addr),
-				skb->len, PCI_DMA_TODEVICE);
-			dev_kfree_skb(skb);
-			hmp->tx_skbuff[i] = NULL;
-		}
-	}
-
-	udelay(60); /* Sleep 60 us just for safety sake */
-	writew(0x0002, ioaddr + RxCmd); /* STOP Rx */
-
-	writeb(0x01, ioaddr + ChipReset);  /* Reinit the hardware */
-
-	hmp->tx_full = 0;
-	hmp->cur_rx = hmp->cur_tx = 0;
-	hmp->dirty_rx = hmp->dirty_tx = 0;
-	/* Rx packets are also presumed lost; however, we need to make sure a
-	 * ring of buffers is in tact. -KDU
-	 */
-	for (i = 0; i < RX_RING_SIZE; i++){
-		struct sk_buff *skb = hmp->rx_skbuff[i];
-
-		if (skb){
-			pci_unmap_single(hmp->pci_dev,
-				leXX_to_cpu(hmp->rx_ring[i].addr),
-				hmp->rx_buf_sz, PCI_DMA_FROMDEVICE);
-			dev_kfree_skb(skb);
-			hmp->rx_skbuff[i] = NULL;
-		}
-	}
-	/* Fill in the Rx buffers.  Handle allocation failure gracefully. */
-	for (i = 0; i < RX_RING_SIZE; i++) {
-		struct sk_buff *skb;
-
-		skb = netdev_alloc_skb_ip_align(dev, hmp->rx_buf_sz);
-		hmp->rx_skbuff[i] = skb;
-		if (skb == NULL)
-			break;
-
-                hmp->rx_ring[i].addr = cpu_to_leXX(pci_map_single(hmp->pci_dev,
-			skb->data, hmp->rx_buf_sz, PCI_DMA_FROMDEVICE));
-		hmp->rx_ring[i].status_n_length = cpu_to_le32(DescOwn |
-			DescEndPacket | DescIntr | (hmp->rx_buf_sz - 2));
-	}
-	hmp->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
-	/* Mark the last entry as wrapping the ring. */
-	hmp->rx_ring[RX_RING_SIZE-1].status_n_length |= cpu_to_le32(DescEndRing);
-
-	/* Trigger an immediate transmit demand. */
-	dev->trans_start = jiffies; /* prevent tx timeout */
-	dev->stats.tx_errors++;
-
-	/* Restart the chip's Tx/Rx processes . */
-	writew(0x0002, ioaddr + TxCmd); /* STOP Tx */
-	writew(0x0001, ioaddr + TxCmd); /* START Tx */
-	writew(0x0001, ioaddr + RxCmd); /* START Rx */
-
-	netif_wake_queue(dev);
-}
-
-
-/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
-static void hamachi_init_ring(struct net_device *dev)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	int i;
-
-	hmp->tx_full = 0;
-	hmp->cur_rx = hmp->cur_tx = 0;
-	hmp->dirty_rx = hmp->dirty_tx = 0;
-
-	/* +26 gets the maximum ethernet encapsulation, +7 & ~7 because the
-	 * card needs room to do 8 byte alignment, +2 so we can reserve
-	 * the first 2 bytes, and +16 gets room for the status word from the
-	 * card.  -KDU
-	 */
-	hmp->rx_buf_sz = (dev->mtu <= 1492 ? PKT_BUF_SZ :
-		(((dev->mtu+26+7) & ~7) + 16));
-
-	/* Initialize all Rx descriptors. */
-	for (i = 0; i < RX_RING_SIZE; i++) {
-		hmp->rx_ring[i].status_n_length = 0;
-		hmp->rx_skbuff[i] = NULL;
-	}
-	/* Fill in the Rx buffers.  Handle allocation failure gracefully. */
-	for (i = 0; i < RX_RING_SIZE; i++) {
-		struct sk_buff *skb = dev_alloc_skb(hmp->rx_buf_sz + 2);
-		hmp->rx_skbuff[i] = skb;
-		if (skb == NULL)
-			break;
-		skb->dev = dev;         /* Mark as being used by this device. */
-		skb_reserve(skb, 2); /* 16 byte align the IP header. */
-                hmp->rx_ring[i].addr = cpu_to_leXX(pci_map_single(hmp->pci_dev,
-			skb->data, hmp->rx_buf_sz, PCI_DMA_FROMDEVICE));
-		/* -2 because it doesn't REALLY have that first 2 bytes -KDU */
-		hmp->rx_ring[i].status_n_length = cpu_to_le32(DescOwn |
-			DescEndPacket | DescIntr | (hmp->rx_buf_sz -2));
-	}
-	hmp->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
-	hmp->rx_ring[RX_RING_SIZE-1].status_n_length |= cpu_to_le32(DescEndRing);
-
-	for (i = 0; i < TX_RING_SIZE; i++) {
-		hmp->tx_skbuff[i] = NULL;
-		hmp->tx_ring[i].status_n_length = 0;
-	}
-	/* Mark the last entry of the ring */
-	hmp->tx_ring[TX_RING_SIZE-1].status_n_length |= cpu_to_le32(DescEndRing);
-}
-
-
-static netdev_tx_t hamachi_start_xmit(struct sk_buff *skb,
-				      struct net_device *dev)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	unsigned entry;
-	u16 status;
-
-	/* Ok, now make sure that the queue has space before trying to
-		add another skbuff.  if we return non-zero the scheduler
-		should interpret this as a queue full and requeue the buffer
-		for later.
-	 */
-	if (hmp->tx_full) {
-		/* We should NEVER reach this point -KDU */
-		printk(KERN_WARNING "%s: Hamachi transmit queue full at slot %d.\n",dev->name, hmp->cur_tx);
-
-		/* Wake the potentially-idle transmit channel. */
-		/* If we don't need to read status, DON'T -KDU */
-		status=readw(hmp->base + TxStatus);
-		if( !(status & 0x0001) || (status & 0x0002))
-			writew(0x0001, hmp->base + TxCmd);
-		return NETDEV_TX_BUSY;
-	}
-
-	/* Caution: the write order is important here, set the field
-	   with the "ownership" bits last. */
-
-	/* Calculate the next Tx descriptor entry. */
-	entry = hmp->cur_tx % TX_RING_SIZE;
-
-	hmp->tx_skbuff[entry] = skb;
-
-        hmp->tx_ring[entry].addr = cpu_to_leXX(pci_map_single(hmp->pci_dev,
-		skb->data, skb->len, PCI_DMA_TODEVICE));
-
-	/* Hmmmm, could probably put a DescIntr on these, but the way
-		the driver is currently coded makes Tx interrupts unnecessary
-		since the clearing of the Tx ring is handled by the start_xmit
-		routine.  This organization helps mitigate the interrupts a
-		bit and probably renders the max_tx_latency param useless.
-
-		Update: Putting a DescIntr bit on all of the descriptors and
-		mitigating interrupt frequency with the tx_min_pkt parameter. -KDU
-	*/
-	if (entry >= TX_RING_SIZE-1)		 /* Wrap ring */
-		hmp->tx_ring[entry].status_n_length = cpu_to_le32(DescOwn |
-			DescEndPacket | DescEndRing | DescIntr | skb->len);
-	else
-		hmp->tx_ring[entry].status_n_length = cpu_to_le32(DescOwn |
-			DescEndPacket | DescIntr | skb->len);
-	hmp->cur_tx++;
-
-	/* Non-x86 Todo: explicitly flush cache lines here. */
-
-	/* Wake the potentially-idle transmit channel. */
-	/* If we don't need to read status, DON'T -KDU */
-	status=readw(hmp->base + TxStatus);
-	if( !(status & 0x0001) || (status & 0x0002))
-		writew(0x0001, hmp->base + TxCmd);
-
-	/* Immediately before returning, let's clear as many entries as we can. */
-	hamachi_tx(dev);
-
-	/* We should kick the bottom half here, since we are not accepting
-	 * interrupts with every packet.  i.e. realize that Gigabit ethernet
-	 * can transmit faster than ordinary machines can load packets;
-	 * hence, any packet that got put off because we were in the transmit
-	 * routine should IMMEDIATELY get a chance to be re-queued. -KDU
-	 */
-	if ((hmp->cur_tx - hmp->dirty_tx) < (TX_RING_SIZE - 4))
-		netif_wake_queue(dev);  /* Typical path */
-	else {
-		hmp->tx_full = 1;
-		netif_stop_queue(dev);
-	}
-
-	if (hamachi_debug > 4) {
-		printk(KERN_DEBUG "%s: Hamachi transmit frame #%d queued in slot %d.\n",
-			   dev->name, hmp->cur_tx, entry);
-	}
-	return NETDEV_TX_OK;
-}
-
-/* The interrupt handler does all of the Rx thread work and cleans up
-   after the Tx thread. */
-static irqreturn_t hamachi_interrupt(int irq, void *dev_instance)
-{
-	struct net_device *dev = dev_instance;
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-	long boguscnt = max_interrupt_work;
-	int handled = 0;
-
-#ifndef final_version			/* Can never occur. */
-	if (dev == NULL) {
-		printk (KERN_ERR "hamachi_interrupt(): irq %d for unknown device.\n", irq);
-		return IRQ_NONE;
-	}
-#endif
-
-	spin_lock(&hmp->lock);
-
-	do {
-		u32 intr_status = readl(ioaddr + InterruptClear);
-
-		if (hamachi_debug > 4)
-			printk(KERN_DEBUG "%s: Hamachi interrupt, status %4.4x.\n",
-				   dev->name, intr_status);
-
-		if (intr_status == 0)
-			break;
-
-		handled = 1;
-
-		if (intr_status & IntrRxDone)
-			hamachi_rx(dev);
-
-		if (intr_status & IntrTxDone){
-			/* This code should RARELY need to execute. After all, this is
-			 * a gigabit link, it should consume packets as fast as we put
-			 * them in AND we clear the Tx ring in hamachi_start_xmit().
-			 */
-			if (hmp->tx_full){
-				for (; hmp->cur_tx - hmp->dirty_tx > 0; hmp->dirty_tx++){
-					int entry = hmp->dirty_tx % TX_RING_SIZE;
-					struct sk_buff *skb;
-
-					if (hmp->tx_ring[entry].status_n_length & cpu_to_le32(DescOwn))
-						break;
-					skb = hmp->tx_skbuff[entry];
-					/* Free the original skb. */
-					if (skb){
-						pci_unmap_single(hmp->pci_dev,
-							leXX_to_cpu(hmp->tx_ring[entry].addr),
-							skb->len,
-							PCI_DMA_TODEVICE);
-						dev_kfree_skb_irq(skb);
-						hmp->tx_skbuff[entry] = NULL;
-					}
-					hmp->tx_ring[entry].status_n_length = 0;
-					if (entry >= TX_RING_SIZE-1)
-						hmp->tx_ring[TX_RING_SIZE-1].status_n_length |=
-							cpu_to_le32(DescEndRing);
-					dev->stats.tx_packets++;
-				}
-				if (hmp->cur_tx - hmp->dirty_tx < TX_RING_SIZE - 4){
-					/* The ring is no longer full */
-					hmp->tx_full = 0;
-					netif_wake_queue(dev);
-				}
-			} else {
-				netif_wake_queue(dev);
-			}
-		}
-
-
-		/* Abnormal error summary/uncommon events handlers. */
-		if (intr_status &
-			(IntrTxPCIFault | IntrTxPCIErr | IntrRxPCIFault | IntrRxPCIErr |
-			 LinkChange | NegotiationChange | StatsMax))
-			hamachi_error(dev, intr_status);
-
-		if (--boguscnt < 0) {
-			printk(KERN_WARNING "%s: Too much work at interrupt, status=0x%4.4x.\n",
-				   dev->name, intr_status);
-			break;
-		}
-	} while (1);
-
-	if (hamachi_debug > 3)
-		printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n",
-			   dev->name, readl(ioaddr + IntrStatus));
-
-#ifndef final_version
-	/* Code that should never be run!  Perhaps remove after testing.. */
-	{
-		static int stopit = 10;
-		if (dev->start == 0  &&  --stopit < 0) {
-			printk(KERN_ERR "%s: Emergency stop, looping startup interrupt.\n",
-				   dev->name);
-			free_irq(irq, dev);
-		}
-	}
-#endif
-
-	spin_unlock(&hmp->lock);
-	return IRQ_RETVAL(handled);
-}
-
-/* This routine is logically part of the interrupt handler, but separated
-   for clarity and better register allocation. */
-static int hamachi_rx(struct net_device *dev)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	int entry = hmp->cur_rx % RX_RING_SIZE;
-	int boguscnt = (hmp->dirty_rx + RX_RING_SIZE) - hmp->cur_rx;
-
-	if (hamachi_debug > 4) {
-		printk(KERN_DEBUG " In hamachi_rx(), entry %d status %4.4x.\n",
-			   entry, hmp->rx_ring[entry].status_n_length);
-	}
-
-	/* If EOP is set on the next entry, it's a new packet. Send it up. */
-	while (1) {
-		struct hamachi_desc *desc = &(hmp->rx_ring[entry]);
-		u32 desc_status = le32_to_cpu(desc->status_n_length);
-		u16 data_size = desc_status;	/* Implicit truncate */
-		u8 *buf_addr;
-		s32 frame_status;
-
-		if (desc_status & DescOwn)
-			break;
-		pci_dma_sync_single_for_cpu(hmp->pci_dev,
-					    leXX_to_cpu(desc->addr),
-					    hmp->rx_buf_sz,
-					    PCI_DMA_FROMDEVICE);
-		buf_addr = (u8 *) hmp->rx_skbuff[entry]->data;
-		frame_status = get_unaligned_le32(&(buf_addr[data_size - 12]));
-		if (hamachi_debug > 4)
-			printk(KERN_DEBUG "  hamachi_rx() status was %8.8x.\n",
-				frame_status);
-		if (--boguscnt < 0)
-			break;
-		if ( ! (desc_status & DescEndPacket)) {
-			printk(KERN_WARNING "%s: Oversized Ethernet frame spanned "
-				   "multiple buffers, entry %#x length %d status %4.4x!\n",
-				   dev->name, hmp->cur_rx, data_size, desc_status);
-			printk(KERN_WARNING "%s: Oversized Ethernet frame %p vs %p.\n",
-				   dev->name, desc, &hmp->rx_ring[hmp->cur_rx % RX_RING_SIZE]);
-			printk(KERN_WARNING "%s: Oversized Ethernet frame -- next status %x/%x last status %x.\n",
-				   dev->name,
-				   le32_to_cpu(hmp->rx_ring[(hmp->cur_rx+1) % RX_RING_SIZE].status_n_length) & 0xffff0000,
-				   le32_to_cpu(hmp->rx_ring[(hmp->cur_rx+1) % RX_RING_SIZE].status_n_length) & 0x0000ffff,
-				   le32_to_cpu(hmp->rx_ring[(hmp->cur_rx-1) % RX_RING_SIZE].status_n_length));
-			dev->stats.rx_length_errors++;
-		} /* else  Omit for prototype errata??? */
-		if (frame_status & 0x00380000) {
-			/* There was an error. */
-			if (hamachi_debug > 2)
-				printk(KERN_DEBUG "  hamachi_rx() Rx error was %8.8x.\n",
-					   frame_status);
-			dev->stats.rx_errors++;
-			if (frame_status & 0x00600000)
-				dev->stats.rx_length_errors++;
-			if (frame_status & 0x00080000)
-				dev->stats.rx_frame_errors++;
-			if (frame_status & 0x00100000)
-				dev->stats.rx_crc_errors++;
-			if (frame_status < 0)
-				dev->stats.rx_dropped++;
-		} else {
-			struct sk_buff *skb;
-			/* Omit CRC */
-			u16 pkt_len = (frame_status & 0x07ff) - 4;
-#ifdef RX_CHECKSUM
-			u32 pfck = *(u32 *) &buf_addr[data_size - 8];
-#endif
-
-
-#ifndef final_version
-			if (hamachi_debug > 4)
-				printk(KERN_DEBUG "  hamachi_rx() normal Rx pkt length %d"
-					   " of %d, bogus_cnt %d.\n",
-					   pkt_len, data_size, boguscnt);
-			if (hamachi_debug > 5)
-				printk(KERN_DEBUG"%s:  rx status %8.8x %8.8x %8.8x %8.8x %8.8x.\n",
-					   dev->name,
-					   *(s32*)&(buf_addr[data_size - 20]),
-					   *(s32*)&(buf_addr[data_size - 16]),
-					   *(s32*)&(buf_addr[data_size - 12]),
-					   *(s32*)&(buf_addr[data_size - 8]),
-					   *(s32*)&(buf_addr[data_size - 4]));
-#endif
-			/* Check if the packet is long enough to accept without copying
-			   to a minimally-sized skbuff. */
-			if (pkt_len < rx_copybreak &&
-			    (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
-#ifdef RX_CHECKSUM
-				printk(KERN_ERR "%s: rx_copybreak non-zero "
-				  "not good with RX_CHECKSUM\n", dev->name);
-#endif
-				skb_reserve(skb, 2);	/* 16 byte align the IP header */
-				pci_dma_sync_single_for_cpu(hmp->pci_dev,
-							    leXX_to_cpu(hmp->rx_ring[entry].addr),
-							    hmp->rx_buf_sz,
-							    PCI_DMA_FROMDEVICE);
-				/* Call copy + cksum if available. */
-#if 1 || USE_IP_COPYSUM
-				skb_copy_to_linear_data(skb,
-					hmp->rx_skbuff[entry]->data, pkt_len);
-				skb_put(skb, pkt_len);
-#else
-				memcpy(skb_put(skb, pkt_len), hmp->rx_ring_dma
-					+ entry*sizeof(*desc), pkt_len);
-#endif
-				pci_dma_sync_single_for_device(hmp->pci_dev,
-							       leXX_to_cpu(hmp->rx_ring[entry].addr),
-							       hmp->rx_buf_sz,
-							       PCI_DMA_FROMDEVICE);
-			} else {
-				pci_unmap_single(hmp->pci_dev,
-						 leXX_to_cpu(hmp->rx_ring[entry].addr),
-						 hmp->rx_buf_sz, PCI_DMA_FROMDEVICE);
-				skb_put(skb = hmp->rx_skbuff[entry], pkt_len);
-				hmp->rx_skbuff[entry] = NULL;
-			}
-			skb->protocol = eth_type_trans(skb, dev);
-
-
-#ifdef RX_CHECKSUM
-			/* TCP or UDP on ipv4, DIX encoding */
-			if (pfck>>24 == 0x91 || pfck>>24 == 0x51) {
-				struct iphdr *ih = (struct iphdr *) skb->data;
-				/* Check that IP packet is at least 46 bytes, otherwise,
-				 * there may be pad bytes included in the hardware checksum.
-				 * This wouldn't happen if everyone padded with 0.
-				 */
-				if (ntohs(ih->tot_len) >= 46){
-					/* don't worry about frags */
-					if (!(ih->frag_off & cpu_to_be16(IP_MF|IP_OFFSET))) {
-						u32 inv = *(u32 *) &buf_addr[data_size - 16];
-						u32 *p = (u32 *) &buf_addr[data_size - 20];
-						register u32 crc, p_r, p_r1;
-
-						if (inv & 4) {
-							inv &= ~4;
-							--p;
-						}
-						p_r = *p;
-						p_r1 = *(p-1);
-						switch (inv) {
-							case 0:
-								crc = (p_r & 0xffff) + (p_r >> 16);
-								break;
-							case 1:
-								crc = (p_r >> 16) + (p_r & 0xffff)
-									+ (p_r1 >> 16 & 0xff00);
-								break;
-							case 2:
-								crc = p_r + (p_r1 >> 16);
-								break;
-							case 3:
-								crc = p_r + (p_r1 & 0xff00) + (p_r1 >> 16);
-								break;
-							default:	/*NOTREACHED*/ crc = 0;
-						}
-						if (crc & 0xffff0000) {
-							crc &= 0xffff;
-							++crc;
-						}
-						/* tcp/udp will add in pseudo */
-						skb->csum = ntohs(pfck & 0xffff);
-						if (skb->csum > crc)
-							skb->csum -= crc;
-						else
-							skb->csum += (~crc & 0xffff);
-						/*
-						* could do the pseudo myself and return
-						* CHECKSUM_UNNECESSARY
-						*/
-						skb->ip_summed = CHECKSUM_COMPLETE;
-					}
-				}
-			}
-#endif  /* RX_CHECKSUM */
-
-			netif_rx(skb);
-			dev->stats.rx_packets++;
-		}
-		entry = (++hmp->cur_rx) % RX_RING_SIZE;
-	}
-
-	/* Refill the Rx ring buffers. */
-	for (; hmp->cur_rx - hmp->dirty_rx > 0; hmp->dirty_rx++) {
-		struct hamachi_desc *desc;
-
-		entry = hmp->dirty_rx % RX_RING_SIZE;
-		desc = &(hmp->rx_ring[entry]);
-		if (hmp->rx_skbuff[entry] == NULL) {
-			struct sk_buff *skb = dev_alloc_skb(hmp->rx_buf_sz + 2);
-
-			hmp->rx_skbuff[entry] = skb;
-			if (skb == NULL)
-				break;		/* Better luck next round. */
-			skb->dev = dev;		/* Mark as being used by this device. */
-			skb_reserve(skb, 2);	/* Align IP on 16 byte boundaries */
-                	desc->addr = cpu_to_leXX(pci_map_single(hmp->pci_dev,
-				skb->data, hmp->rx_buf_sz, PCI_DMA_FROMDEVICE));
-		}
-		desc->status_n_length = cpu_to_le32(hmp->rx_buf_sz);
-		if (entry >= RX_RING_SIZE-1)
-			desc->status_n_length |= cpu_to_le32(DescOwn |
-				DescEndPacket | DescEndRing | DescIntr);
-		else
-			desc->status_n_length |= cpu_to_le32(DescOwn |
-				DescEndPacket | DescIntr);
-	}
-
-	/* Restart Rx engine if stopped. */
-	/* If we don't need to check status, don't. -KDU */
-	if (readw(hmp->base + RxStatus) & 0x0002)
-		writew(0x0001, hmp->base + RxCmd);
-
-	return 0;
-}
-
-/* This is more properly named "uncommon interrupt events", as it covers more
-   than just errors. */
-static void hamachi_error(struct net_device *dev, int intr_status)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-
-	if (intr_status & (LinkChange|NegotiationChange)) {
-		if (hamachi_debug > 1)
-			printk(KERN_INFO "%s: Link changed: AutoNegotiation Ctrl"
-				   " %4.4x, Status %4.4x %4.4x Intr status %4.4x.\n",
-				   dev->name, readw(ioaddr + 0x0E0), readw(ioaddr + 0x0E2),
-				   readw(ioaddr + ANLinkPartnerAbility),
-				   readl(ioaddr + IntrStatus));
-		if (readw(ioaddr + ANStatus) & 0x20)
-			writeb(0x01, ioaddr + LEDCtrl);
-		else
-			writeb(0x03, ioaddr + LEDCtrl);
-	}
-	if (intr_status & StatsMax) {
-		hamachi_get_stats(dev);
-		/* Read the overflow bits to clear. */
-		readl(ioaddr + 0x370);
-		readl(ioaddr + 0x3F0);
-	}
-	if ((intr_status & ~(LinkChange|StatsMax|NegotiationChange|IntrRxDone|IntrTxDone)) &&
-	    hamachi_debug)
-		printk(KERN_ERR "%s: Something Wicked happened! %4.4x.\n",
-		       dev->name, intr_status);
-	/* Hmmmmm, it's not clear how to recover from PCI faults. */
-	if (intr_status & (IntrTxPCIErr | IntrTxPCIFault))
-		dev->stats.tx_fifo_errors++;
-	if (intr_status & (IntrRxPCIErr | IntrRxPCIFault))
-		dev->stats.rx_fifo_errors++;
-}
-
-static int hamachi_close(struct net_device *dev)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-	struct sk_buff *skb;
-	int i;
-
-	netif_stop_queue(dev);
-
-	if (hamachi_debug > 1) {
-		printk(KERN_DEBUG "%s: Shutting down ethercard, status was Tx %4.4x Rx %4.4x Int %2.2x.\n",
-			   dev->name, readw(ioaddr + TxStatus),
-			   readw(ioaddr + RxStatus), readl(ioaddr + IntrStatus));
-		printk(KERN_DEBUG "%s: Queue pointers were Tx %d / %d,  Rx %d / %d.\n",
-			   dev->name, hmp->cur_tx, hmp->dirty_tx, hmp->cur_rx, hmp->dirty_rx);
-	}
-
-	/* Disable interrupts by clearing the interrupt mask. */
-	writel(0x0000, ioaddr + InterruptEnable);
-
-	/* Stop the chip's Tx and Rx processes. */
-	writel(2, ioaddr + RxCmd);
-	writew(2, ioaddr + TxCmd);
-
-#ifdef __i386__
-	if (hamachi_debug > 2) {
-		printk(KERN_DEBUG "  Tx ring at %8.8x:\n",
-			   (int)hmp->tx_ring_dma);
-		for (i = 0; i < TX_RING_SIZE; i++)
-			printk(KERN_DEBUG " %c #%d desc. %8.8x %8.8x.\n",
-				   readl(ioaddr + TxCurPtr) == (long)&hmp->tx_ring[i] ? '>' : ' ',
-				   i, hmp->tx_ring[i].status_n_length, hmp->tx_ring[i].addr);
-		printk(KERN_DEBUG "  Rx ring %8.8x:\n",
-			   (int)hmp->rx_ring_dma);
-		for (i = 0; i < RX_RING_SIZE; i++) {
-			printk(KERN_DEBUG " %c #%d desc. %4.4x %8.8x\n",
-				   readl(ioaddr + RxCurPtr) == (long)&hmp->rx_ring[i] ? '>' : ' ',
-				   i, hmp->rx_ring[i].status_n_length, hmp->rx_ring[i].addr);
-			if (hamachi_debug > 6) {
-				if (*(u8*)hmp->rx_skbuff[i]->data != 0x69) {
-					u16 *addr = (u16 *)
-						hmp->rx_skbuff[i]->data;
-					int j;
-					printk(KERN_DEBUG "Addr: ");
-					for (j = 0; j < 0x50; j++)
-						printk(" %4.4x", addr[j]);
-					printk("\n");
-				}
-			}
-		}
-	}
-#endif /* __i386__ debugging only */
-
-	free_irq(dev->irq, dev);
-
-	del_timer_sync(&hmp->timer);
-
-	/* Free all the skbuffs in the Rx queue. */
-	for (i = 0; i < RX_RING_SIZE; i++) {
-		skb = hmp->rx_skbuff[i];
-		hmp->rx_ring[i].status_n_length = 0;
-		if (skb) {
-			pci_unmap_single(hmp->pci_dev,
-				leXX_to_cpu(hmp->rx_ring[i].addr),
-				hmp->rx_buf_sz, PCI_DMA_FROMDEVICE);
-			dev_kfree_skb(skb);
-			hmp->rx_skbuff[i] = NULL;
-		}
-		hmp->rx_ring[i].addr = cpu_to_leXX(0xBADF00D0); /* An invalid address. */
-	}
-	for (i = 0; i < TX_RING_SIZE; i++) {
-		skb = hmp->tx_skbuff[i];
-		if (skb) {
-			pci_unmap_single(hmp->pci_dev,
-				leXX_to_cpu(hmp->tx_ring[i].addr),
-				skb->len, PCI_DMA_TODEVICE);
-			dev_kfree_skb(skb);
-			hmp->tx_skbuff[i] = NULL;
-		}
-	}
-
-	writeb(0x00, ioaddr + LEDCtrl);
-
-	return 0;
-}
-
-static struct net_device_stats *hamachi_get_stats(struct net_device *dev)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-
-	/* We should lock this segment of code for SMP eventually, although
-	   the vulnerability window is very small and statistics are
-	   non-critical. */
-        /* Ok, what goes here?  This appears to be stuck at 21 packets
-           according to ifconfig.  It does get incremented in hamachi_tx(),
-           so I think I'll comment it out here and see if better things
-           happen.
-        */
-	/* dev->stats.tx_packets	= readl(ioaddr + 0x000); */
-
-	/* Total Uni+Brd+Multi */
-	dev->stats.rx_bytes = readl(ioaddr + 0x330);
-	/* Total Uni+Brd+Multi */
-	dev->stats.tx_bytes = readl(ioaddr + 0x3B0);
-	/* Multicast Rx */
-	dev->stats.multicast = readl(ioaddr + 0x320);
-
-	/* Over+Undersized */
-	dev->stats.rx_length_errors = readl(ioaddr + 0x368);
-	/* Jabber */
-	dev->stats.rx_over_errors = readl(ioaddr + 0x35C);
-	/* Jabber */
-	dev->stats.rx_crc_errors = readl(ioaddr + 0x360);
-	/* Symbol Errs */
-	dev->stats.rx_frame_errors = readl(ioaddr + 0x364);
-	/* Dropped */
-	dev->stats.rx_missed_errors = readl(ioaddr + 0x36C);
-
-	return &dev->stats;
-}
-
-static void set_rx_mode(struct net_device *dev)
-{
-	struct hamachi_private *hmp = netdev_priv(dev);
-	void __iomem *ioaddr = hmp->base;
-
-	if (dev->flags & IFF_PROMISC) {			/* Set promiscuous. */
-		writew(0x000F, ioaddr + AddrMode);
-	} else if ((netdev_mc_count(dev) > 63) || (dev->flags & IFF_ALLMULTI)) {
-		/* Too many to match, or accept all multicasts. */
-		writew(0x000B, ioaddr + AddrMode);
-	} else if (!netdev_mc_empty(dev)) { /* Must use the CAM filter. */
-		struct netdev_hw_addr *ha;
-		int i = 0;
-
-		netdev_for_each_mc_addr(ha, dev) {
-			writel(*(u32 *)(ha->addr), ioaddr + 0x100 + i*8);
-			writel(0x20000 | (*(u16 *)&ha->addr[4]),
-				   ioaddr + 0x104 + i*8);
-			i++;
-		}
-		/* Clear remaining entries. */
-		for (; i < 64; i++)
-			writel(0, ioaddr + 0x104 + i*8);
-		writew(0x0003, ioaddr + AddrMode);
-	} else {					/* Normal, unicast/broadcast-only mode. */
-		writew(0x0001, ioaddr + AddrMode);
-	}
-}
-
-static int check_if_running(struct net_device *dev)
-{
-	if (!netif_running(dev))
-		return -EINVAL;
-	return 0;
-}
-
-static void hamachi_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
-	struct hamachi_private *np = netdev_priv(dev);
-	strcpy(info->driver, DRV_NAME);
-	strcpy(info->version, DRV_VERSION);
-	strcpy(info->bus_info, pci_name(np->pci_dev));
-}
-
-static int hamachi_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
-{
-	struct hamachi_private *np = netdev_priv(dev);
-	spin_lock_irq(&np->lock);
-	mii_ethtool_gset(&np->mii_if, ecmd);
-	spin_unlock_irq(&np->lock);
-	return 0;
-}
-
-static int hamachi_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
-{
-	struct hamachi_private *np = netdev_priv(dev);
-	int res;
-	spin_lock_irq(&np->lock);
-	res = mii_ethtool_sset(&np->mii_if, ecmd);
-	spin_unlock_irq(&np->lock);
-	return res;
-}
-
-static int hamachi_nway_reset(struct net_device *dev)
-{
-	struct hamachi_private *np = netdev_priv(dev);
-	return mii_nway_restart(&np->mii_if);
-}
-
-static u32 hamachi_get_link(struct net_device *dev)
-{
-	struct hamachi_private *np = netdev_priv(dev);
-	return mii_link_ok(&np->mii_if);
-}
-
-static const struct ethtool_ops ethtool_ops = {
-	.begin = check_if_running,
-	.get_drvinfo = hamachi_get_drvinfo,
-	.get_settings = hamachi_get_settings,
-	.set_settings = hamachi_set_settings,
-	.nway_reset = hamachi_nway_reset,
-	.get_link = hamachi_get_link,
-};
-
-static const struct ethtool_ops ethtool_ops_no_mii = {
-	.begin = check_if_running,
-	.get_drvinfo = hamachi_get_drvinfo,
-};
-
-static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
-	struct hamachi_private *np = netdev_priv(dev);
-	struct mii_ioctl_data *data = if_mii(rq);
-	int rc;
-
-	if (!netif_running(dev))
-		return -EINVAL;
-
-	if (cmd == (SIOCDEVPRIVATE+3)) { /* set rx,tx intr params */
-		u32 *d = (u32 *)&rq->ifr_ifru;
-		/* Should add this check here or an ordinary user can do nasty
-		 * things. -KDU
-		 *
-		 * TODO: Shut down the Rx and Tx engines while doing this.
-		 */
-		if (!capable(CAP_NET_ADMIN))
-			return -EPERM;
-		writel(d[0], np->base + TxIntrCtrl);
-		writel(d[1], np->base + RxIntrCtrl);
-		printk(KERN_NOTICE "%s: tx %08x, rx %08x intr\n", dev->name,
-		  (u32) readl(np->base + TxIntrCtrl),
-		  (u32) readl(np->base + RxIntrCtrl));
-		rc = 0;
-	}
-
-	else {
-		spin_lock_irq(&np->lock);
-		rc = generic_mii_ioctl(&np->mii_if, data, cmd, NULL);
-		spin_unlock_irq(&np->lock);
-	}
-
-	return rc;
-}
-
-
-static void __devexit hamachi_remove_one (struct pci_dev *pdev)
-{
-	struct net_device *dev = pci_get_drvdata(pdev);
-
-	if (dev) {
-		struct hamachi_private *hmp = netdev_priv(dev);
-
-		pci_free_consistent(pdev, RX_TOTAL_SIZE, hmp->rx_ring,
-			hmp->rx_ring_dma);
-		pci_free_consistent(pdev, TX_TOTAL_SIZE, hmp->tx_ring,
-			hmp->tx_ring_dma);
-		unregister_netdev(dev);
-		iounmap(hmp->base);
-		free_netdev(dev);
-		pci_release_regions(pdev);
-		pci_set_drvdata(pdev, NULL);
-	}
-}
-
-static DEFINE_PCI_DEVICE_TABLE(hamachi_pci_tbl) = {
-	{ 0x1318, 0x0911, PCI_ANY_ID, PCI_ANY_ID, },
-	{ 0, }
-};
-MODULE_DEVICE_TABLE(pci, hamachi_pci_tbl);
-
-static struct pci_driver hamachi_driver = {
-	.name		= DRV_NAME,
-	.id_table	= hamachi_pci_tbl,
-	.probe		= hamachi_init_one,
-	.remove		= __devexit_p(hamachi_remove_one),
-};
-
-static int __init hamachi_init (void)
-{
-/* when a module, this is printed whether or not devices are found in probe */
-#ifdef MODULE
-	printk(version);
-#endif
-	return pci_register_driver(&hamachi_driver);
-}
-
-static void __exit hamachi_exit (void)
-{
-	pci_unregister_driver(&hamachi_driver);
-}
-
-
-module_init(hamachi_init);
-module_exit(hamachi_exit);