drivers/net/tlan.c


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/*******************************************************************************
 *
 *  Linux ThunderLAN Driver
 *
 *  tlan.c
 *  by James Banks
 *
 *  (C) 1997-1998 Caldera, Inc.
 *  (C) 1998 James Banks
 *  (C) 1999-2001 Torben Mathiasen
 *  (C) 2002 Samuel Chessman
 *
 *  This software may be used and distributed according to the terms
 *  of the GNU General Public License, incorporated herein by reference.
 *
 ** Useful (if not required) reading:
 *
 *		Texas Instruments, ThunderLAN Programmer's Guide,
 *			TI Literature Number SPWU013A
 *			available in PDF format from www.ti.com
 *		Level One, LXT901 and LXT970 Data Sheets
 *			available in PDF format from www.level1.com
 *		National Semiconductor, DP83840A Data Sheet
 *			available in PDF format from www.national.com
 *		Microchip Technology, 24C01A/02A/04A Data Sheet
 *			available in PDF format from www.microchip.com
 *
 * Change History
 *
 *	Tigran Aivazian <tigran@sco.com>:	TLan_PciProbe() now uses
 *						new PCI BIOS interface.
 *	Alan Cox	<alan@lxorguk.ukuu.org.uk>:
 *						Fixed the out of memory
 *						handling.
 *
 *	Torben Mathiasen <torben.mathiasen@compaq.com> New Maintainer!
 *
 *	v1.1 Dec 20, 1999    - Removed linux version checking
 *			       Patch from Tigran Aivazian.
 *			     - v1.1 includes Alan's SMP updates.
 *			     - We still have problems on SMP though,
 *			       but I'm looking into that.
 *
 *	v1.2 Jan 02, 2000    - Hopefully fixed the SMP deadlock.
 *			     - Removed dependency of HZ being 100.
 *			     - We now allow higher priority timers to
 *			       overwrite timers like TLAN_TIMER_ACTIVITY
 *			       Patch from John Cagle <john.cagle@compaq.com>.
 *			     - Fixed a few compiler warnings.
 *
 *	v1.3 Feb 04, 2000    - Fixed the remaining HZ issues.
 *			     - Removed call to pci_present().
 *			     - Removed SA_INTERRUPT flag from irq handler.
 *			     - Added __init and __initdata to reduce resisdent
 *			       code size.
 *			     - Driver now uses module_init/module_exit.
 *			     - Rewrote init_module and tlan_probe to
 *			       share a lot more code. We now use tlan_probe
 *			       with builtin and module driver.
 *			     - Driver ported to new net API.
 *			     - tlan.txt has been reworked to reflect current
 *			       driver (almost)
 *			     - Other minor stuff
 *
 *	v1.4 Feb 10, 2000    - Updated with more changes required after Dave's
 *	                       network cleanup in 2.3.43pre7 (Tigran & myself)
 *	                     - Minor stuff.
 *
 *	v1.5 March 22, 2000  - Fixed another timer bug that would hang the driver
 *			       if no cable/link were present.
 *			     - Cosmetic changes.
 *			     - TODO: Port completely to new PCI/DMA API
 *			     	     Auto-Neg fallback.
 *
 * 	v1.6 April 04, 2000  - Fixed driver support for kernel-parameters. Haven't
 * 			       tested it though, as the kernel support is currently
 * 			       broken (2.3.99p4p3).
 * 			     - Updated tlan.txt accordingly.
 * 			     - Adjusted minimum/maximum frame length.
 * 			     - There is now a TLAN website up at
 * 			       http://tlan.kernel.dk
 *
 * 	v1.7 April 07, 2000  - Started to implement custom ioctls. Driver now
 * 			       reports PHY information when used with Donald
 * 			       Beckers userspace MII diagnostics utility.
 *
 * 	v1.8 April 23, 2000  - Fixed support for forced speed/duplex settings.
 * 			     - Added link information to Auto-Neg and forced
 * 			       modes. When NIC operates with auto-neg the driver
 * 			       will report Link speed & duplex modes as well as
 * 			       link partner abilities. When forced link is used,
 * 			       the driver will report status of the established
 * 			       link.
 * 			       Please read tlan.txt for additional information.
 * 			     - Removed call to check_region(), and used
 * 			       return value of request_region() instead.
 *
 *	v1.8a May 28, 2000   - Minor updates.
 *
 *	v1.9 July 25, 2000   - Fixed a few remaining Full-Duplex issues.
 *	                     - Updated with timer fixes from Andrew Morton.
 *	                     - Fixed module race in TLan_Open.
 *	                     - Added routine to monitor PHY status.
 *	                     - Added activity led support for Proliant devices.
 *
 *	v1.10 Aug 30, 2000   - Added support for EISA based tlan controllers
 *			       like the Compaq NetFlex3/E.
 *			     - Rewrote tlan_probe to better handle multiple
 *			       bus probes. Probing and device setup is now
 *			       done through TLan_Probe and TLan_init_one. Actual
 *			       hardware probe is done with kernel API and
 *			       TLan_EisaProbe.
 *			     - Adjusted debug information for probing.
 *			     - Fixed bug that would cause general debug information
 *			       to be printed after driver removal.
 *			     - Added transmit timeout handling.
 *			     - Fixed OOM return values in tlan_probe.
 *			     - Fixed possible mem leak in tlan_exit
 *			       (now tlan_remove_one).
 *			     - Fixed timer bug in TLan_phyMonitor.
 *			     - This driver version is alpha quality, please
 *			       send me any bug issues you may encounter.
 *
 *	v1.11 Aug 31, 2000   - Do not try to register irq 0 if no irq line was
 *			       set for EISA cards.
 *			     - Added support for NetFlex3/E with nibble-rate
 *			       10Base-T PHY. This is untestet as I haven't got
 *			       one of these cards.
 *			     - Fixed timer being added twice.
 *			     - Disabled PhyMonitoring by default as this is
 *			       work in progress. Define MONITOR to enable it.
 *			     - Now we don't display link info with PHYs that
 *			       doesn't support it (level1).
 *			     - Incresed tx_timeout beacuse of auto-neg.
 *			     - Adjusted timers for forced speeds.
 *
 *	v1.12 Oct 12, 2000   - Minor fixes (memleak, init, etc.)
 *
 * 	v1.13 Nov 28, 2000   - Stop flooding console with auto-neg issues
 * 			       when link can't be established.
 *			     - Added the bbuf option as a kernel parameter.
 *			     - Fixed ioaddr probe bug.
 *			     - Fixed stupid deadlock with MII interrupts.
 *			     - Added support for speed/duplex selection with
 *			       multiple nics.
 *			     - Added partly fix for TX Channel lockup with
 *			       TLAN v1.0 silicon. This needs to be investigated
 *			       further.
 *
 * 	v1.14 Dec 16, 2000   - Added support for servicing multiple frames per.
 * 			       interrupt. Thanks goes to
 * 			       Adam Keys <adam@ti.com>
 * 			       Denis Beaudoin <dbeaudoin@ti.com>
 * 			       for providing the patch.
 * 			     - Fixed auto-neg output when using multiple
 * 			       adapters.
 * 			     - Converted to use new taskq interface.
 *
 * 	v1.14a Jan 6, 2001   - Minor adjustments (spinlocks, etc.)
 *
 *	Samuel Chessman <chessman@tux.org> New Maintainer!
 *
 *	v1.15 Apr 4, 2002    - Correct operation when aui=1 to be
 *	                       10T half duplex no loopback
 *	                       Thanks to Gunnar Eikman
 *
 *	Sakari Ailus <sakari.ailus@iki.fi>:
 *
 *	v1.15a Dec 15 2008   - Remove bbuf support, it doesn't work anyway.
 *
 *******************************************************************************/

#include <linux/module.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/eisa.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/mii.h>

#include "tlan.h"

typedef u32 (TLanIntVectorFunc)( struct net_device *, u16 );


/* For removing EISA devices */
static	struct net_device	*TLan_Eisa_Devices;

static	int		TLanDevicesInstalled;

/* Set speed, duplex and aui settings */
static  int aui[MAX_TLAN_BOARDS];
static  int duplex[MAX_TLAN_BOARDS];
static  int speed[MAX_TLAN_BOARDS];
static  int boards_found;
module_param_array(aui, int, NULL, 0);
module_param_array(duplex, int, NULL, 0);
module_param_array(speed, int, NULL, 0);
MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
MODULE_PARM_DESC(duplex, "ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
MODULE_PARM_DESC(speed, "ThunderLAN port speen setting(s) (0,10,100)");

MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
MODULE_LICENSE("GPL");


/* Define this to enable Link beat monitoring */
#undef MONITOR

/* Turn on debugging. See Documentation/networking/tlan.txt for details */
static  int		debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "ThunderLAN debug mask");

static	const char TLanSignature[] = "TLAN";
static  const char tlan_banner[] = "ThunderLAN driver v1.15a\n";
static  int tlan_have_pci;
static  int tlan_have_eisa;

static const char *media[] = {
	"10BaseT-HD ", "10BaseT-FD ","100baseTx-HD ",
	"100baseTx-FD", "100baseT4", NULL
};

static struct board {
	const char	*deviceLabel;
	u32	   	flags;
	u16	   	addrOfs;
} board_info[] = {
	{ "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
	{ "Compaq Netelligent 10/100 TX PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
	{ "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
	{ "Compaq NetFlex-3/P",
	  TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
	{ "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
	{ "Compaq Netelligent Integrated 10/100 TX UTP",
	  TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
	{ "Compaq Netelligent Dual 10/100 TX PCI UTP", TLAN_ADAPTER_NONE, 0x83 },
	{ "Compaq Netelligent 10/100 TX Embedded UTP", TLAN_ADAPTER_NONE, 0x83 },
	{ "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
	{ "Olicom OC-2325", TLAN_ADAPTER_UNMANAGED_PHY, 0xF8 },
	{ "Olicom OC-2326", TLAN_ADAPTER_USE_INTERN_10, 0xF8 },
	{ "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
	{ "Compaq Netelligent 10 T/2 PCI UTP/Coax", TLAN_ADAPTER_NONE, 0x83 },
	{ "Compaq NetFlex-3/E",
	  TLAN_ADAPTER_ACTIVITY_LED | 	/* EISA card */
	  TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
	{ "Compaq NetFlex-3/E", TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
};

static struct pci_device_id tlan_pci_tbl[] = {
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
	{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
	{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
	{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
	{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
	{ 0,}
};
MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);

static void	TLan_EisaProbe( void );
static void	TLan_Eisa_Cleanup( void );
static int      TLan_Init( struct net_device * );
static int	TLan_Open( struct net_device *dev );
static int	TLan_StartTx( struct sk_buff *, struct net_device *);
static irqreturn_t TLan_HandleInterrupt( int, void *);
static int	TLan_Close( struct net_device *);
static struct	net_device_stats *TLan_GetStats( struct net_device *);
static void	TLan_SetMulticastList( struct net_device *);
static int	TLan_ioctl( struct net_device *dev, struct ifreq *rq, int cmd);
static int      TLan_probe1( struct pci_dev *pdev, long ioaddr,
			     int irq, int rev, const struct pci_device_id *ent);
static void	TLan_tx_timeout( struct net_device *dev);
static void	TLan_tx_timeout_work(struct work_struct *work);
static int 	tlan_init_one( struct pci_dev *pdev, const struct pci_device_id *ent);

static u32	TLan_HandleTxEOF( struct net_device *, u16 );
static u32	TLan_HandleStatOverflow( struct net_device *, u16 );
static u32	TLan_HandleRxEOF( struct net_device *, u16 );
static u32	TLan_HandleDummy( struct net_device *, u16 );
static u32	TLan_HandleTxEOC( struct net_device *, u16 );
static u32	TLan_HandleStatusCheck( struct net_device *, u16 );
static u32	TLan_HandleRxEOC( struct net_device *, u16 );

static void	TLan_Timer( unsigned long );

static void	TLan_ResetLists( struct net_device * );
static void	TLan_FreeLists( struct net_device * );
static void	TLan_PrintDio( u16 );
static void	TLan_PrintList( TLanList *, char *, int );
static void	TLan_ReadAndClearStats( struct net_device *, int );
static void	TLan_ResetAdapter( struct net_device * );
static void	TLan_FinishReset( struct net_device * );
static void	TLan_SetMac( struct net_device *, int areg, char *mac );

static void	TLan_PhyPrint( struct net_device * );
static void	TLan_PhyDetect( struct net_device * );
static void	TLan_PhyPowerDown( struct net_device * );
static void	TLan_PhyPowerUp( struct net_device * );
static void	TLan_PhyReset( struct net_device * );
static void	TLan_PhyStartLink( struct net_device * );
static void	TLan_PhyFinishAutoNeg( struct net_device * );
#ifdef MONITOR
static void     TLan_PhyMonitor( struct net_device * );
#endif

/*
static int	TLan_PhyNop( struct net_device * );
static int	TLan_PhyInternalCheck( struct net_device * );
static int	TLan_PhyInternalService( struct net_device * );
static int	TLan_PhyDp83840aCheck( struct net_device * );
*/

static int	TLan_MiiReadReg( struct net_device *, u16, u16, u16 * );
static void	TLan_MiiSendData( u16, u32, unsigned );
static void	TLan_MiiSync( u16 );
static void	TLan_MiiWriteReg( struct net_device *, u16, u16, u16 );

static void	TLan_EeSendStart( u16 );
static int	TLan_EeSendByte( u16, u8, int );
static void	TLan_EeReceiveByte( u16, u8 *, int );
static int	TLan_EeReadByte( struct net_device *, u8, u8 * );


static inline void
TLan_StoreSKB( struct tlan_list_tag *tag, struct sk_buff *skb)
{
	unsigned long addr = (unsigned long)skb;
	tag->buffer[9].address = addr;
	tag->buffer[8].address = upper_32_bits(addr);
}

static inline struct sk_buff *
TLan_GetSKB( const struct tlan_list_tag *tag)
{
	unsigned long addr;

	addr = tag->buffer[9].address;
	addr |= (tag->buffer[8].address << 16) << 16;
	return (struct sk_buff *) addr;
}


static TLanIntVectorFunc *TLanIntVector[TLAN_INT_NUMBER_OF_INTS] = {
	NULL,
	TLan_HandleTxEOF,
	TLan_HandleStatOverflow,
	TLan_HandleRxEOF,
	TLan_HandleDummy,
	TLan_HandleTxEOC,
	TLan_HandleStatusCheck,
	TLan_HandleRxEOC
};

static inline void
TLan_SetTimer( struct net_device *dev, u32 ticks, u32 type )
{
	TLanPrivateInfo *priv = netdev_priv(dev);
	unsigned long flags = 0;

	if (!in_irq())
		spin_lock_irqsave(&priv->lock, flags);
	if ( priv->timer.function != NULL &&
		priv->timerType != TLAN_TIMER_ACTIVITY ) {
		if (!in_irq())
			spin_unlock_irqrestore(&priv->lock, flags);
		return;
	}
	priv->timer.function = &TLan_Timer;
	if (!in_irq())
		spin_unlock_irqrestore(&priv->lock, flags);

	priv->timer.data = (unsigned long) dev;
	priv->timerSetAt = jiffies;
	priv->timerType = type;
	mod_timer(&priv->timer, jiffies + ticks);

} /* TLan_SetTimer */


/*****************************************************************************
******************************************************************************

	ThunderLAN Driver Primary Functions

	These functions are more or less common to all Linux network drivers.

******************************************************************************
*****************************************************************************/


	/***************************************************************
	 *	tlan_remove_one
	 *
	 *	Returns:
	 *		Nothing
	 *	Parms:
	 *		None
	 *
	 *	Goes through the TLanDevices list and frees the device
	 *	structs and memory associated with each device (lists
	 *	and buffers).  It also ureserves the IO port regions
	 *	associated with this device.
	 *
	 **************************************************************/


static void __devexit tlan_remove_one( struct pci_dev *pdev)
{
	struct net_device *dev = pci_get_drvdata( pdev );
	TLanPrivateInfo	*priv = netdev_priv(dev);

	unregister_netdev( dev );

	if ( priv->dmaStorage ) {
		pci_free_consistent(priv->pciDev,
				    priv->dmaSize, priv->dmaStorage,
				    priv->dmaStorageDMA );
	}

#ifdef CONFIG_PCI
	pci_release_regions(pdev);
#endif

	free_netdev( dev );

	pci_set_drvdata( pdev, NULL );
}

static struct pci_driver tlan_driver = {
	.name		= "tlan",
	.id_table	= tlan_pci_tbl,
	.probe		= tlan_init_one,
	.remove		= __devexit_p(tlan_remove_one),
};

static int __init tlan_probe(void)
{
	int rc = -ENODEV;

	printk(KERN_INFO "%s", tlan_banner);

	TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");

	/* Use new style PCI probing. Now the kernel will
	   do most of this for us */
	rc = pci_register_driver(&tlan_driver);

	if (rc != 0) {
		printk(KERN_ERR "TLAN: Could not register pci driver.\n");
		goto err_out_pci_free;
	}

	TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
	TLan_EisaProbe();

	printk(KERN_INFO "TLAN: %d device%s installed, PCI: %d  EISA: %d\n",
		 TLanDevicesInstalled, TLanDevicesInstalled == 1 ? "" : "s",
		 tlan_have_pci, tlan_have_eisa);

	if (TLanDevicesInstalled == 0) {
		rc = -ENODEV;
		goto  err_out_pci_unreg;
	}
	return 0;

err_out_pci_unreg:
	pci_unregister_driver(&tlan_driver);
err_out_pci_free:
	return rc;
}


static int __devinit tlan_init_one( struct pci_dev *pdev,
				    const struct pci_device_id *ent)
{
	return TLan_probe1( pdev, -1, -1, 0, ent);
}


/*
	***************************************************************
	 *	tlan_probe1
	 *
	 *	Returns:
	 *		0 on success, error code on error
	 *	Parms:
	 *		none
	 *
	 *	The name is lower case to fit in with all the rest of
	 *	the netcard_probe names.  This function looks for
	 *	another TLan based adapter, setting it up with the
	 *	allocated device struct if one is found.
	 *	tlan_probe has been ported to the new net API and
	 *	now allocates its own device structure. This function
	 *	is also used by modules.
	 *
	 **************************************************************/

static int __devinit TLan_probe1(struct pci_dev *pdev,
				 long ioaddr, int irq, int rev,
				 const struct pci_device_id *ent )
{

	struct net_device  *dev;
	TLanPrivateInfo    *priv;
	u16		   device_id;
	int		   reg, rc = -ENODEV;

#ifdef CONFIG_PCI
	if (pdev) {
		rc = pci_enable_device(pdev);
		if (rc)
			return rc;

		rc = pci_request_regions(pdev, TLanSignature);
		if (rc) {
			printk(KERN_ERR "TLAN: Could not reserve IO regions\n");
			goto err_out;
		}
	}
#endif  /*  CONFIG_PCI  */

	dev = alloc_etherdev(sizeof(TLanPrivateInfo));
	if (dev == NULL) {
		printk(KERN_ERR "TLAN: Could not allocate memory for device.\n");
		rc = -ENOMEM;
		goto err_out_regions;
	}
	SET_NETDEV_DEV(dev, &pdev->dev);

	priv = netdev_priv(dev);

	priv->pciDev = pdev;
	priv->dev = dev;

	/* Is this a PCI device? */
	if (pdev) {
		u32 		   pci_io_base = 0;

		priv->adapter = &board_info[ent->driver_data];

		rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
		if (rc) {
			printk(KERN_ERR "TLAN: No suitable PCI mapping available.\n");
			goto err_out_free_dev;
		}

		for ( reg= 0; reg <= 5; reg ++ ) {
			if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
				pci_io_base = pci_resource_start(pdev, reg);
				TLAN_DBG( TLAN_DEBUG_GNRL, "IO mapping is available at %x.\n",
						pci_io_base);
				break;
			}
		}
		if (!pci_io_base) {
			printk(KERN_ERR "TLAN: No IO mappings available\n");
			rc = -EIO;
			goto err_out_free_dev;
		}

		dev->base_addr = pci_io_base;
		dev->irq = pdev->irq;
		priv->adapterRev = pdev->revision;
		pci_set_master(pdev);
		pci_set_drvdata(pdev, dev);

	} else	{     /* EISA card */
		/* This is a hack. We need to know which board structure
		 * is suited for this adapter */
		device_id = inw(ioaddr + EISA_ID2);
		priv->is_eisa = 1;
		if (device_id == 0x20F1) {
			priv->adapter = &board_info[13]; 	/* NetFlex-3/E */
			priv->adapterRev = 23;			/* TLAN 2.3 */
		} else {