fddi: Move the FDDI drivers

Move the FDDI drivers into drivers/net/fddi/ and make the
necessary Kconfig and Makefile changes.

CC: "Maciej W. Rozycki" <macro@linux-mips.org>
CC: Christoph Goos <cgoos@syskonnect.de>
CC: <linux@syskonnect.de>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 2260 deletions

diff --git a/drivers/net/skfp/skfddi.c b/drivers/net/skfp/skfddi.c
deleted file mode 100644
index 3d9a4596a423..000000000000
--- a/drivers/net/skfp/skfddi.c
+++ /dev/null
@@ -1,2260 +0,0 @@
-/*
- * File Name:
- *   skfddi.c
- *
- * Copyright Information:
- *   Copyright SysKonnect 1998,1999.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * The information in this file is provided "AS IS" without warranty.
- *
- * Abstract:
- *   A Linux device driver supporting the SysKonnect FDDI PCI controller
- *   familie.
- *
- * Maintainers:
- *   CG    Christoph Goos (cgoos@syskonnect.de)
- *
- * Contributors:
- *   DM    David S. Miller
- *
- * Address all question to:
- *   linux@syskonnect.de
- *
- * The technical manual for the adapters is available from SysKonnect's
- * web pages: www.syskonnect.com
- * Goto "Support" and search Knowledge Base for "manual".
- *
- * Driver Architecture:
- *   The driver architecture is based on the DEC FDDI driver by
- *   Lawrence V. Stefani and several ethernet drivers.
- *   I also used an existing Windows NT miniport driver.
- *   All hardware dependent functions are handled by the SysKonnect
- *   Hardware Module.
- *   The only headerfiles that are directly related to this source
- *   are skfddi.c, h/types.h, h/osdef1st.h, h/targetos.h.
- *   The others belong to the SysKonnect FDDI Hardware Module and
- *   should better not be changed.
- *
- * Modification History:
- *              Date            Name    Description
- *              02-Mar-98       CG	Created.
- *
- *		10-Mar-99	CG	Support for 2.2.x added.
- *		25-Mar-99	CG	Corrected IRQ routing for SMP (APIC)
- *		26-Oct-99	CG	Fixed compilation error on 2.2.13
- *		12-Nov-99	CG	Source code release
- *		22-Nov-99	CG	Included in kernel source.
- *		07-May-00	DM	64 bit fixes, new dma interface
- *		31-Jul-03	DB	Audit copy_*_user in skfp_ioctl
- *					  Daniele Bellucci <bellucda@tiscali.it>
- *		03-Dec-03	SH	Convert to PCI device model
- *
- * Compilation options (-Dxxx):
- *              DRIVERDEBUG     print lots of messages to log file
- *              DUMPPACKETS     print received/transmitted packets to logfile
- * 
- * Tested cpu architectures:
- *	- i386
- *	- sparc64
- */
-
-/* Version information string - should be updated prior to */
-/* each new release!!! */
-#define VERSION		"2.07"
-
-static const char * const boot_msg = 
-	"SysKonnect FDDI PCI Adapter driver v" VERSION " for\n"
-	"  SK-55xx/SK-58xx adapters (SK-NET FDDI-FP/UP/LP)";
-
-/* Include files */
-
-#include <linux/capability.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/netdevice.h>
-#include <linux/fddidevice.h>
-#include <linux/skbuff.h>
-#include <linux/bitops.h>
-#include <linux/gfp.h>
-
-#include <asm/byteorder.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include	"h/types.h"
-#undef ADDR			// undo Linux definition
-#include	"h/skfbi.h"
-#include	"h/fddi.h"
-#include	"h/smc.h"
-#include	"h/smtstate.h"
-
-
-// Define module-wide (static) routines
-static int skfp_driver_init(struct net_device *dev);
-static int skfp_open(struct net_device *dev);
-static int skfp_close(struct net_device *dev);
-static irqreturn_t skfp_interrupt(int irq, void *dev_id);
-static struct net_device_stats *skfp_ctl_get_stats(struct net_device *dev);
-static void skfp_ctl_set_multicast_list(struct net_device *dev);
-static void skfp_ctl_set_multicast_list_wo_lock(struct net_device *dev);
-static int skfp_ctl_set_mac_address(struct net_device *dev, void *addr);
-static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static netdev_tx_t skfp_send_pkt(struct sk_buff *skb,
-				       struct net_device *dev);
-static void send_queued_packets(struct s_smc *smc);
-static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr);
-static void ResetAdapter(struct s_smc *smc);
-
-
-// Functions needed by the hardware module
-void *mac_drv_get_space(struct s_smc *smc, u_int size);
-void *mac_drv_get_desc_mem(struct s_smc *smc, u_int size);
-unsigned long mac_drv_virt2phys(struct s_smc *smc, void *virt);
-unsigned long dma_master(struct s_smc *smc, void *virt, int len, int flag);
-void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr,
-		  int flag);
-void mac_drv_tx_complete(struct s_smc *smc, volatile struct s_smt_fp_txd *txd);
-void llc_restart_tx(struct s_smc *smc);
-void mac_drv_rx_complete(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
-			 int frag_count, int len);
-void mac_drv_requeue_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
-			 int frag_count);
-void mac_drv_fill_rxd(struct s_smc *smc);
-void mac_drv_clear_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
-		       int frag_count);
-int mac_drv_rx_init(struct s_smc *smc, int len, int fc, char *look_ahead,
-		    int la_len);
-void dump_data(unsigned char *Data, int length);
-
-// External functions from the hardware module
-extern u_int mac_drv_check_space(void);
-extern int mac_drv_init(struct s_smc *smc);
-extern void hwm_tx_frag(struct s_smc *smc, char far * virt, u_long phys,
-			int len, int frame_status);
-extern int hwm_tx_init(struct s_smc *smc, u_char fc, int frag_count,
-		       int frame_len, int frame_status);
-extern void fddi_isr(struct s_smc *smc);
-extern void hwm_rx_frag(struct s_smc *smc, char far * virt, u_long phys,
-			int len, int frame_status);
-extern void mac_drv_rx_mode(struct s_smc *smc, int mode);
-extern void mac_drv_clear_rx_queue(struct s_smc *smc);
-extern void enable_tx_irq(struct s_smc *smc, u_short queue);
-
-static DEFINE_PCI_DEVICE_TABLE(skfddi_pci_tbl) = {
-	{ PCI_VENDOR_ID_SK, PCI_DEVICE_ID_SK_FP, PCI_ANY_ID, PCI_ANY_ID, },
-	{ }			/* Terminating entry */
-};
-MODULE_DEVICE_TABLE(pci, skfddi_pci_tbl);
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Mirko Lindner <mlindner@syskonnect.de>");
-
-// Define module-wide (static) variables
-
-static int num_boards;	/* total number of adapters configured */
-
-static const struct net_device_ops skfp_netdev_ops = {
-	.ndo_open		= skfp_open,
-	.ndo_stop		= skfp_close,
-	.ndo_start_xmit		= skfp_send_pkt,
-	.ndo_get_stats		= skfp_ctl_get_stats,
-	.ndo_change_mtu		= fddi_change_mtu,
-	.ndo_set_rx_mode	= skfp_ctl_set_multicast_list,
-	.ndo_set_mac_address	= skfp_ctl_set_mac_address,
-	.ndo_do_ioctl		= skfp_ioctl,
-};
-
-/*
- * =================
- * = skfp_init_one =
- * =================
- *   
- * Overview:
- *   Probes for supported FDDI PCI controllers
- *  
- * Returns:
- *   Condition code
- *       
- * Arguments:
- *   pdev - pointer to PCI device information
- *
- * Functional Description:
- *   This is now called by PCI driver registration process
- *   for each board found.
- *   
- * Return Codes:
- *   0           - This device (fddi0, fddi1, etc) configured successfully
- *   -ENODEV - No devices present, or no SysKonnect FDDI PCI device
- *                         present for this device name
- *
- *
- * Side Effects:
- *   Device structures for FDDI adapters (fddi0, fddi1, etc) are
- *   initialized and the board resources are read and stored in
- *   the device structure.
- */
-static int skfp_init_one(struct pci_dev *pdev,
-				const struct pci_device_id *ent)
-{
-	struct net_device *dev;
-	struct s_smc *smc;	/* board pointer */
-	void __iomem *mem;
-	int err;
-
-	pr_debug("entering skfp_init_one\n");
-
-	if (num_boards == 0) 
-		printk("%s\n", boot_msg);
-
-	err = pci_enable_device(pdev);
-	if (err)
-		return err;
-
-	err = pci_request_regions(pdev, "skfddi");
-	if (err)
-		goto err_out1;
-
-	pci_set_master(pdev);
-
-#ifdef MEM_MAPPED_IO
-	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
-		printk(KERN_ERR "skfp: region is not an MMIO resource\n");
-		err = -EIO;
-		goto err_out2;
-	}
-
-	mem = ioremap(pci_resource_start(pdev, 0), 0x4000);
-#else
-	if (!(pci_resource_flags(pdev, 1) & IO_RESOURCE_IO)) {
-		printk(KERN_ERR "skfp: region is not PIO resource\n");
-		err = -EIO;
-		goto err_out2;
-	}
-
-	mem = ioport_map(pci_resource_start(pdev, 1), FP_IO_LEN);
-#endif
-	if (!mem) {
-		printk(KERN_ERR "skfp:  Unable to map register, "
-				"FDDI adapter will be disabled.\n");
-		err = -EIO;
-		goto err_out2;
-	}
-
-	dev = alloc_fddidev(sizeof(struct s_smc));
-	if (!dev) {
-		printk(KERN_ERR "skfp: Unable to allocate fddi device, "
-				"FDDI adapter will be disabled.\n");
-		err = -ENOMEM;
-		goto err_out3;
-	}
-
-	dev->irq = pdev->irq;
-	dev->netdev_ops = &skfp_netdev_ops;
-
-	SET_NETDEV_DEV(dev, &pdev->dev);
-
-	/* Initialize board structure with bus-specific info */
-	smc = netdev_priv(dev);
-	smc->os.dev = dev;
-	smc->os.bus_type = SK_BUS_TYPE_PCI;
-	smc->os.pdev = *pdev;
-	smc->os.QueueSkb = MAX_TX_QUEUE_LEN;
-	smc->os.MaxFrameSize = MAX_FRAME_SIZE;
-	smc->os.dev = dev;
-	smc->hw.slot = -1;
-	smc->hw.iop = mem;
-	smc->os.ResetRequested = FALSE;
-	skb_queue_head_init(&smc->os.SendSkbQueue);
-
-	dev->base_addr = (unsigned long)mem;
-
-	err = skfp_driver_init(dev);
-	if (err)
-		goto err_out4;
-
-	err = register_netdev(dev);
-	if (err)
-		goto err_out5;
-
-	++num_boards;
-	pci_set_drvdata(pdev, dev);
-
-	if ((pdev->subsystem_device & 0xff00) == 0x5500 ||
-	    (pdev->subsystem_device & 0xff00) == 0x5800) 
-		printk("%s: SysKonnect FDDI PCI adapter"
-		       " found (SK-%04X)\n", dev->name,	
-		       pdev->subsystem_device);
-	else
-		printk("%s: FDDI PCI adapter found\n", dev->name);
-
-	return 0;
-err_out5:
-	if (smc->os.SharedMemAddr) 
-		pci_free_consistent(pdev, smc->os.SharedMemSize,
-				    smc->os.SharedMemAddr, 
-				    smc->os.SharedMemDMA);
-	pci_free_consistent(pdev, MAX_FRAME_SIZE,
-			    smc->os.LocalRxBuffer, smc->os.LocalRxBufferDMA);
-err_out4:
-	free_netdev(dev);
-err_out3:
-#ifdef MEM_MAPPED_IO
-	iounmap(mem);
-#else
-	ioport_unmap(mem);
-#endif
-err_out2:
-	pci_release_regions(pdev);
-err_out1:
-	pci_disable_device(pdev);
-	return err;
-}
-
-/*
- * Called for each adapter board from pci_unregister_driver
- */
-static void __devexit skfp_remove_one(struct pci_dev *pdev)
-{
-	struct net_device *p = pci_get_drvdata(pdev);
-	struct s_smc *lp = netdev_priv(p);
-
-	unregister_netdev(p);
-
-	if (lp->os.SharedMemAddr) {
-		pci_free_consistent(&lp->os.pdev,
-				    lp->os.SharedMemSize,
-				    lp->os.SharedMemAddr,
-				    lp->os.SharedMemDMA);
-		lp->os.SharedMemAddr = NULL;
-	}
-	if (lp->os.LocalRxBuffer) {
-		pci_free_consistent(&lp->os.pdev,
-				    MAX_FRAME_SIZE,
-				    lp->os.LocalRxBuffer,
-				    lp->os.LocalRxBufferDMA);
-		lp->os.LocalRxBuffer = NULL;
-	}
-#ifdef MEM_MAPPED_IO
-	iounmap(lp->hw.iop);
-#else
-	ioport_unmap(lp->hw.iop);
-#endif
-	pci_release_regions(pdev);
-	free_netdev(p);
-
-	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
-}
-
-/*
- * ====================
- * = skfp_driver_init =
- * ====================
- *   
- * Overview:
- *   Initializes remaining adapter board structure information
- *   and makes sure adapter is in a safe state prior to skfp_open().
- *  
- * Returns:
- *   Condition code
- *       
- * Arguments:
- *   dev - pointer to device information
- *
- * Functional Description:
- *   This function allocates additional resources such as the host memory
- *   blocks needed by the adapter.
- *   The adapter is also reset. The OS must call skfp_open() to open 
- *   the adapter and bring it on-line.
- *
- * Return Codes:
- *    0 - initialization succeeded
- *   -1 - initialization failed
- */
-static  int skfp_driver_init(struct net_device *dev)
-{
-	struct s_smc *smc = netdev_priv(dev);
-	skfddi_priv *bp = &smc->os;
-	int err = -EIO;
-
-	pr_debug("entering skfp_driver_init\n");
-
-	// set the io address in private structures
-	bp->base_addr = dev->base_addr;
-
-	// Get the interrupt level from the PCI Configuration Table
-	smc->hw.irq = dev->irq;
-
-	spin_lock_init(&bp->DriverLock);
-	
-	// Allocate invalid frame
-	bp->LocalRxBuffer = pci_alloc_consistent(&bp->pdev, MAX_FRAME_SIZE, &bp->LocalRxBufferDMA);
-	if (!bp->LocalRxBuffer) {
-		printk("could not allocate mem for ");
-		printk("LocalRxBuffer: %d byte\n", MAX_FRAME_SIZE);
-		goto fail;
-	}
-
-	// Determine the required size of the 'shared' memory area.
-	bp->SharedMemSize = mac_drv_check_space();
-	pr_debug("Memory for HWM: %ld\n", bp->SharedMemSize);
-	if (bp->SharedMemSize > 0) {
-		bp->SharedMemSize += 16;	// for descriptor alignment
-
-		bp->SharedMemAddr = pci_alloc_consistent(&bp->pdev,
-							 bp->SharedMemSize,
-							 &bp->SharedMemDMA);
-		if (!bp->SharedMemAddr) {
-			printk("could not allocate mem for ");
-			printk("hardware module: %ld byte\n",
-			       bp->SharedMemSize);
-			goto fail;
-		}
-		bp->SharedMemHeap = 0;	// Nothing used yet.
-
-	} else {
-		bp->SharedMemAddr = NULL;
-		bp->SharedMemHeap = 0;
-	}			// SharedMemSize > 0
-
-	memset(bp->SharedMemAddr, 0, bp->SharedMemSize);
-
-	card_stop(smc);		// Reset adapter.
-
-	pr_debug("mac_drv_init()..\n");
-	if (mac_drv_init(smc) != 0) {
-		pr_debug("mac_drv_init() failed\n");
-		goto fail;
-	}
-	read_address(smc, NULL);
-	pr_debug("HW-Addr: %pMF\n", smc->hw.fddi_canon_addr.a);
-	memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, 6);
-
-	smt_reset_defaults(smc, 0);
-
-	return 0;
-
-fail:
-	if (bp->SharedMemAddr) {
-		pci_free_consistent(&bp->pdev,
-				    bp->SharedMemSize,
-				    bp->SharedMemAddr,
-				    bp->SharedMemDMA);
-		bp->SharedMemAddr = NULL;
-	}
-	if (bp->LocalRxBuffer) {
-		pci_free_consistent(&bp->pdev, MAX_FRAME_SIZE,
-				    bp->LocalRxBuffer, bp->LocalRxBufferDMA);
-		bp->LocalRxBuffer = NULL;
-	}
-	return err;
-}				// skfp_driver_init
-
-
-/*
- * =============
- * = skfp_open =
- * =============
- *   
- * Overview:
- *   Opens the adapter
- *  
- * Returns:
- *   Condition code
- *       
- * Arguments:
- *   dev - pointer to device information
- *
- * Functional Description:
- *   This function brings the adapter to an operational state.
- *
- * Return Codes:
- *   0           - Adapter was successfully opened
- *   -EAGAIN - Could not register IRQ
- */
-static int skfp_open(struct net_device *dev)
-{
-	struct s_smc *smc = netdev_priv(dev);
-	int err;
-
-	pr_debug("entering skfp_open\n");
-	/* Register IRQ - support shared interrupts by passing device ptr */
-	err = request_irq(dev->irq, skfp_interrupt, IRQF_SHARED,
-			  dev->name, dev);
-	if (err)
-		return err;
-
-	/*
-	 * Set current address to factory MAC address
-	 *
-	 * Note: We've already done this step in skfp_driver_init.
-	 *       However, it's possible that a user has set a node
-	 *               address override, then closed and reopened the
-	 *               adapter.  Unless we reset the device address field
-	 *               now, we'll continue to use the existing modified
-	 *               address.
-	 */
-	read_address(smc, NULL);
-	memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, 6);
-
-	init_smt(smc, NULL);
-	smt_online(smc, 1);
-	STI_FBI();
-
-	/* Clear local multicast address tables */
-	mac_clear_multicast(smc);
-
-	/* Disable promiscuous filter settings */
-	mac_drv_rx_mode(smc, RX_DISABLE_PROMISC);
-
-	netif_start_queue(dev);
-	return 0;
-}				// skfp_open
-
-
-/*
- * ==============
- * = skfp_close =
- * ==============
- *   
- * Overview:
- *   Closes the device/module.
- *  
- * Returns:
- *   Condition code
- *       
- * Arguments:
- *   dev - pointer to device information
- *
- * Functional Description:
- *   This routine closes the adapter and brings it to a safe state.
- *   The interrupt service routine is deregistered with the OS.
- *   The adapter can be opened again with another call to skfp_open().
- *
- * Return Codes:
- *   Always return 0.
- *
- * Assumptions:
- *   No further requests for this adapter are made after this routine is
- *   called.  skfp_open() can be called to reset and reinitialize the
- *   adapter.
- */
-static int skfp_close(struct net_device *dev)
-{
-	struct s_smc *smc = netdev_priv(dev);
-	skfddi_priv *bp = &smc->os;
-
-	CLI_FBI();
-	smt_reset_defaults(smc, 1);
-	card_stop(smc);
-	mac_drv_clear_tx_queue(smc);
-	mac_drv_clear_rx_queue(smc);
-
-	netif_stop_queue(dev);
-	/* Deregister (free) IRQ */
-	free_irq(dev->irq, dev);
-
-	skb_queue_purge(&bp->SendSkbQueue);
-	bp->QueueSkb = MAX_TX_QUEUE_LEN;
-
-	return 0;
-}				// skfp_close
-
-
-/*
- * ==================
- * = skfp_interrupt =
- * ==================
- *   
- * Overview:
- *   Interrupt processing routine
- *  
- * Returns:
- *   None
- *       
- * Arguments:
- *   irq        - interrupt vector
- *   dev_id     - pointer to device information
- *
- * Functional Description:
- *   This routine calls the interrupt processing routine for this adapter.  It
- *   disables and reenables adapter interrupts, as appropriate.  We can support
- *   shared interrupts since the incoming dev_id pointer provides our device
- *   structure context. All the real work is done in the hardware module.
- *
- * Return Codes:
- *   None
- *
- * Assumptions:
- *   The interrupt acknowledgement at the hardware level (eg. ACKing the PIC
- *   on Intel-based systems) is done by the operating system outside this
- *   routine.
- *
- *       System interrupts are enabled through this call.
- *
- * Side Effects:
- *   Interrupts are disabled, then reenabled at the adapter.
- */
-
-static irqreturn_t skfp_interrupt(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-	struct s_smc *smc;	/* private board structure pointer */
-	skfddi_priv *bp;
-
-	smc = netdev_priv(dev);
-	bp = &smc->os;
-
-	// IRQs enabled or disabled ?
-	if (inpd(ADDR(B0_IMSK)) == 0) {
-		// IRQs are disabled: must be shared interrupt
-		return IRQ_NONE;
-	}
-	// Note: At this point, IRQs are enabled.
-	if ((inpd(ISR_A) & smc->hw.is_imask) == 0) {	// IRQ?
-		// Adapter did not issue an IRQ: must be shared interrupt
-		return IRQ_NONE;
-	}
-	CLI_FBI();		// Disable IRQs from our adapter.
-	spin_lock(&bp->DriverLock);
-
-	// Call interrupt handler in hardware module (HWM).
-	fddi_isr(smc);
-
-	if (smc->os.ResetRequested) {
-		ResetAdapter(smc);
-		smc->os.ResetRequested = FALSE;
-	}
-	spin_unlock(&bp->DriverLock);
-	STI_FBI();		// Enable IRQs from our adapter.
-
-	return IRQ_HANDLED;
-}				// skfp_interrupt
-
-
-/*
- * ======================
- * = skfp_ctl_get_stats =
- * ======================
- *   
- * Overview:
- *   Get statistics for FDDI adapter
- *  
- * Returns:
- *   Pointer to FDDI statistics structure
- *       
- * Arguments:
- *   dev - pointer to device information
- *
- * Functional Description:
- *   Gets current MIB objects from adapter, then
- *   returns FDDI statistics structure as defined
- *   in if_fddi.h.
- *
- *   Note: Since the FDDI statistics structure is
- *   still new and the device structure doesn't
- *   have an FDDI-specific get statistics handler,
- *   we'll return the FDDI statistics structure as
- *   a pointer to an Ethernet statistics structure.
- *   That way, at least the first part of the statistics
- *   structure can be decoded properly.
- *   We'll have to pay attention to this routine as the
- *   device structure becomes more mature and LAN media
- *   independent.
- *
- */
-static struct net_device_stats *skfp_ctl_get_stats(struct net_device *dev)
-{
-	struct s_smc *bp = netdev_priv(dev);
-
-	/* Fill the bp->stats structure with driver-maintained counters */
-
-	bp->os.MacStat.port_bs_flag[0] = 0x1234;
-	bp->os.MacStat.port_bs_flag[1] = 0x5678;
-// goos: need to fill out fddi statistic
-#if 0
-	/* Get FDDI SMT MIB objects */
-
-/* Fill the bp->stats structure with the SMT MIB object values */
-
-	memcpy(bp->stats.smt_station_id, &bp->cmd_rsp_virt->smt_mib_get.smt_station_id, sizeof(bp->cmd_rsp_virt->smt_mib_get.smt_station_id));
-	bp->stats.smt_op_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_op_version_id;
-	bp->stats.smt_hi_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_hi_version_id;
-	bp->stats.smt_lo_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_lo_version_id;
-	memcpy(bp->stats.smt_user_data, &bp->cmd_rsp_virt->smt_mib_get.smt_user_data, sizeof(bp->cmd_rsp_virt->smt_mib_get.smt_user_data));
-	bp->stats.smt_mib_version_id = bp->cmd_rsp_virt->smt_mib_get.smt_mib_version_id;
-	bp->stats.smt_mac_cts = bp->cmd_rsp_virt->smt_mib_get.smt_mac_ct;
-	bp->stats.smt_non_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_non_master_ct;
-	bp->stats.smt_master_cts = bp->cmd_rsp_virt->smt_mib_get.smt_master_ct;
-	bp->stats.smt_available_paths = bp->cmd_rsp_virt->smt_mib_get.smt_available_paths;
-	bp->stats.smt_config_capabilities = bp->cmd_rsp_virt->smt_mib_get.smt_config_capabilities;
-	bp->stats.smt_config_policy = bp->cmd_rsp_virt->smt_mib_get.smt_config_policy;
-	bp->stats.smt_connection_policy = bp->cmd_rsp_virt->smt_mib_get.smt_connection_policy;
-	bp->stats.smt_t_notify = bp->cmd_rsp_virt->smt_mib_get.smt_t_notify;
-	bp->stats.smt_stat_rpt_policy = bp->cmd_rsp_virt->smt_mib_get.smt_stat_rpt_policy;
-	bp->stats.smt_trace_max_expiration = bp->cmd_rsp_virt->smt_mib_get.smt_trace_max_expiration;
-	bp->stats.smt_bypass_present = bp->cmd_rsp_virt->smt_mib_get.smt_bypass_present;
-	bp->stats.smt_ecm_state = bp->cmd_rsp_virt->smt_mib_get.smt_ecm_state;
-	bp->stats.smt_cf_state = bp->cmd_rsp_virt->smt_mib_get.smt_cf_state;
-	bp->stats.smt_remote_disconnect_flag = bp->cmd_rsp_virt->smt_mib_get.smt_remote_disconnect_flag;
-	bp->stats.smt_station_status = bp->cmd_rsp_virt->smt_mib_get.smt_station_status;
-	bp->stats.smt_peer_wrap_flag = bp->cmd_rsp_virt->smt_mib_get.smt_peer_wrap_flag;
-	bp->stats.smt_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_msg_time_stamp.ls;
-	bp->stats.smt_transition_time_stamp = bp->cmd_rsp_virt->smt_mib_get.smt_transition_time_stamp.ls;
-	bp->stats.mac_frame_status_functions = bp->cmd_rsp_virt->smt_mib_get.mac_frame_status_functions;
-	bp->stats.mac_t_max_capability = bp->cmd_rsp_virt->smt_mib_get.mac_t_max_capability;
-	bp->stats.mac_tvx_capability = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_capability;
-	bp->stats.mac_available_paths = bp->cmd_rsp_virt->smt_mib_get.mac_available_paths;
-	bp->stats.mac_current_path = bp->cmd_rsp_virt->smt_mib_get.mac_current_path;
-	memcpy(bp->stats.mac_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_upstream_nbr, FDDI_K_ALEN);
-	memcpy(bp->stats.mac_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_downstream_nbr, FDDI_K_ALEN);
-	memcpy(bp->stats.mac_old_upstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_upstream_nbr, FDDI_K_ALEN);
-	memcpy(bp->stats.mac_old_downstream_nbr, &bp->cmd_rsp_virt->smt_mib_get.mac_old_downstream_nbr, FDDI_K_ALEN);
-	bp->stats.mac_dup_address_test = bp->cmd_rsp_virt->smt_mib_get.mac_dup_address_test;
-	bp->stats.mac_requested_paths = bp->cmd_rsp_virt->smt_mib_get.mac_requested_paths;
-	bp->stats.mac_downstream_port_type = bp->cmd_rsp_virt->smt_mib_get.mac_downstream_port_type;
-	memcpy(bp->stats.mac_smt_address, &bp->cmd_rsp_virt->smt_mib_get.mac_smt_address, FDDI_K_ALEN);
-	bp->stats.mac_t_req = bp->cmd_rsp_virt->smt_mib_get.mac_t_req;
-	bp->stats.mac_t_neg = bp->cmd_rsp_virt->smt_mib_get.mac_t_neg;
-	bp->stats.mac_t_max = bp->cmd_rsp_virt->smt_mib_get.mac_t_max;
-	bp->stats.mac_tvx_value = bp->cmd_rsp_virt->smt_mib_get.mac_tvx_value;
-	bp->stats.mac_frame_error_threshold = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_threshold;
-	bp->stats.mac_frame_error_ratio = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_ratio;
-	bp->stats.mac_rmt_state = bp->cmd_rsp_virt->smt_mib_get.mac_rmt_state;
-	bp->stats.mac_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_da_flag;
-	bp->stats.mac_una_da_flag = bp->cmd_rsp_virt->smt_mib_get.mac_unda_flag;
-	bp->stats.mac_frame_error_flag = bp->cmd_rsp_virt->smt_mib_get.mac_frame_error_flag;
-	bp->stats.mac_ma_unitdata_available = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_available;
-	bp->stats.mac_hardware_present = bp->cmd_rsp_virt->smt_mib_get.mac_hardware_present;
-	bp->stats.mac_ma_unitdata_enable = bp->cmd_rsp_virt->smt_mib_get.mac_ma_unitdata_enable;
-	bp->stats.path_tvx_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_tvx_lower_bound;
-	bp->stats.path_t_max_lower_bound = bp->cmd_rsp_virt->smt_mib_get.path_t_max_lower_bound;
-	bp->stats.path_max_t_req = bp->cmd_rsp_virt->smt_mib_get.path_max_t_req;
-	memcpy(bp->stats.path_configuration, &bp->cmd_rsp_virt->smt_mib_get.path_configuration, sizeof(bp->cmd_rsp_virt->smt_mib_get.path_configuration));
-	bp->stats.port_my_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[0];
-	bp->stats.port_my_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_my_type[1];
-	bp->stats.port_neighbor_type[0] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[0];
-	bp->stats.port_neighbor_type[1] = bp->cmd_rsp_virt->smt_mib_get.port_neighbor_type[1];
-	bp->stats.port_connection_policies[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[0];
-	bp->stats.port_connection_policies[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_policies[1];
-	bp->stats.port_mac_indicated[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[0];
-	bp->stats.port_mac_indicated[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_indicated[1];
-	bp->stats.port_current_path[0] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[0];
-	bp->stats.port_current_path[1] = bp->cmd_rsp_virt->smt_mib_get.port_current_path[1];
-	memcpy(&bp->stats.port_requested_paths[0 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[0], 3);
-	memcpy(&bp->stats.port_requested_paths[1 * 3], &bp->cmd_rsp_virt->smt_mib_get.port_requested_paths[1], 3);
-	bp->stats.port_mac_placement[0] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[0];
-	bp->stats.port_mac_placement[1] = bp->cmd_rsp_virt->smt_mib_get.port_mac_placement[1];
-	bp->stats.port_available_paths[0] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[0];
-	bp->stats.port_available_paths[1] = bp->cmd_rsp_virt->smt_mib_get.port_available_paths[1];
-	bp->stats.port_pmd_class[0] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[0];
-	bp->stats.port_pmd_class[1] = bp->cmd_rsp_virt->smt_mib_get.port_pmd_class[1];
-	bp->stats.port_connection_capabilities[0] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[0];
-	bp->stats.port_connection_capabilities[1] = bp->cmd_rsp_virt->smt_mib_get.port_connection_capabilities[1];
-	bp->stats.port_bs_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[0];
-	bp->stats.port_bs_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_bs_flag[1];
-	bp->stats.port_ler_estimate[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[0];
-	bp->stats.port_ler_estimate[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_estimate[1];
-	bp->stats.port_ler_cutoff[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[0];
-	bp->stats.port_ler_cutoff[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_cutoff[1];
-	bp->stats.port_ler_alarm[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[0];
-	bp->stats.port_ler_alarm[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_alarm[1];
-	bp->stats.port_connect_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[0];
-	bp->stats.port_connect_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_connect_state[1];
-	bp->stats.port_pcm_state[0] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[0];
-	bp->stats.port_pcm_state[1] = bp->cmd_rsp_virt->smt_mib_get.port_pcm_state[1];
-	bp->stats.port_pc_withhold[0] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[0];
-	bp->stats.port_pc_withhold[1] = bp->cmd_rsp_virt->smt_mib_get.port_pc_withhold[1];
-	bp->stats.port_ler_flag[0] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[0];
-	bp->stats.port_ler_flag[1] = bp->cmd_rsp_virt->smt_mib_get.port_ler_flag[1];
-	bp->stats.port_hardware_present[0] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[0];
-	bp->stats.port_hardware_present[1] = bp->cmd_rsp_virt->smt_mib_get.port_hardware_present[1];
-
-
-	/* Fill the bp->stats structure with the FDDI counter values */
-
-	bp->stats.mac_frame_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.frame_cnt.ls;
-	bp->stats.mac_copied_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.copied_cnt.ls;
-	bp->stats.mac_transmit_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.transmit_cnt.ls;
-	bp->stats.mac_error_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.error_cnt.ls;
-	bp->stats.mac_lost_cts = bp->cmd_rsp_virt->cntrs_get.cntrs.lost_cnt.ls;
-	bp->stats.port_lct_fail_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[0].ls;
-	bp->stats.port_lct_fail_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lct_rejects[1].ls;
-	bp->stats.port_lem_reject_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[0].ls;
-	bp->stats.port_lem_reject_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.lem_rejects[1].ls;
-	bp->stats.port_lem_cts[0] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[0].ls;
-	bp->stats.port_lem_cts[1] = bp->cmd_rsp_virt->cntrs_get.cntrs.link_errors[1].ls;
-
-#endif
-	return (struct net_device_stats *)&bp->os.MacStat;
-}				// ctl_get_stat
-
-
-/*
- * ==============================
- * = skfp_ctl_set_multicast_list =
- * ==============================
- *   
- * Overview:
- *   Enable/Disable LLC frame promiscuous mode reception
- *   on the adapter and/or update multicast address table.
- *  
- * Returns:
- *   None
- *       
- * Arguments:
- *   dev - pointer to device information
- *
- * Functional Description:
- *   This function acquires the driver lock and only calls
- *   skfp_ctl_set_multicast_list_wo_lock then.
- *   This routine follows a fairly simple algorithm for setting the
- *   adapter filters and CAM:
- *
- *      if IFF_PROMISC flag is set
- *              enable promiscuous mode
- *      else
- *              disable promiscuous mode
- *              if number of multicast addresses <= max. multicast number
- *                      add mc addresses to adapter table
- *              else
- *                      enable promiscuous mode
- *              update adapter filters
- *
- * Assumptions:
- *   Multicast addresses are presented in canonical (LSB) format.
- *
- * Side Effects:
- *   On-board adapter filters are updated.
- */
-static void skfp_ctl_set_multicast_list(struct net_device *dev)
-{
-	struct s_smc *smc = netdev_priv(dev);
-	skfddi_priv *bp = &smc->os;
-	unsigned long Flags;
-
-	spin_lock_irqsave(&bp->DriverLock, Flags);
-	skfp_ctl_set_multicast_list_wo_lock(dev);
-	spin_unlock_irqrestore(&bp->DriverLock, Flags);
-}				// skfp_ctl_set_multicast_list
-
-
-
-static void skfp_ctl_set_multicast_list_wo_lock(struct net_device *dev)
-{
-	struct s_smc *smc = netdev_priv(dev);
-	struct netdev_hw_addr *ha;
-
-	/* Enable promiscuous mode, if necessary */
-	if (dev->flags & IFF_PROMISC) {
-		mac_drv_rx_mode(smc, RX_ENABLE_PROMISC);
-		pr_debug("PROMISCUOUS MODE ENABLED\n");
-	}
-	/* Else, update multicast address table */
-	else {
-		mac_drv_rx_mode(smc, RX_DISABLE_PROMISC);
-		pr_debug("PROMISCUOUS MODE DISABLED\n");
-
-		// Reset all MC addresses
-		mac_clear_multicast(smc);
-		mac_drv_rx_mode(smc, RX_DISABLE_ALLMULTI);
-
-		if (dev->flags & IFF_ALLMULTI) {
-			mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI);
-			pr_debug("ENABLE ALL MC ADDRESSES\n");
-		} else if (!netdev_mc_empty(dev)) {
-			if (netdev_mc_count(dev) <= FPMAX_MULTICAST) {
-				/* use exact filtering */
-
-				// point to first multicast addr
-				netdev_for_each_mc_addr(ha, dev) {
-					mac_add_multicast(smc,
-						(struct fddi_addr *)ha->addr,
-						1);
-
-					pr_debug("ENABLE MC ADDRESS: %pMF\n",
-						 ha->addr);
-				}
-
-			} else {	// more MC addresses than HW supports
-
-				mac_drv_rx_mode(smc, RX_ENABLE_ALLMULTI);
-				pr_debug("ENABLE ALL MC ADDRESSES\n");
-			}
-		} else {	// no MC addresses
-
-			pr_debug("DISABLE ALL MC ADDRESSES\n");
-		}
-
-		/* Update adapter filters */
-		mac_update_multicast(smc);
-	}
-}				// skfp_ctl_set_multicast_list_wo_lock
-
-
-/*
- * ===========================
- * = skfp_ctl_set_mac_address =
- * ===========================
- *   
- * Overview:
- *   set new mac address on adapter and update dev_addr field in device table.
- *  
- * Returns:
- *   None
- *       
- * Arguments:
- *   dev  - pointer to device information
- *   addr - pointer to sockaddr structure containing unicast address to set
- *
- * Assumptions:
- *   The address pointed to by addr->sa_data is a valid unicast
- *   address and is presented in canonical (LSB) format.
- */
-static int skfp_ctl_set_mac_address(struct net_device *dev, void *addr)
-{
-	struct s_smc *smc = netdev_priv(dev);
-	struct sockaddr *p_sockaddr = (struct sockaddr *) addr;
-	skfddi_priv *bp = &smc->os;
-	unsigned long Flags;
-
-
-	memcpy(dev->dev_addr, p_sockaddr->sa_data, FDDI_K_ALEN);
-	spin_lock_irqsave(&bp->DriverLock, Flags);
-	ResetAdapter(smc);
-	spin_unlock_irqrestore(&bp->DriverLock, Flags);
-
-	return 0;		/* always return zero */
-}				// skfp_ctl_set_mac_address
-
-
-/*
- * ==============
- * = skfp_ioctl =
- * ==============
- *   
- * Overview:
- *
- * Perform IOCTL call functions here. Some are privileged operations and the
- * effective uid is checked in those cases.
- *  
- * Returns:
- *   status value
- *   0 - success
- *   other - failure
- *       
- * Arguments:
- *   dev  - pointer to device information
- *   rq - pointer to ioctl request structure
- *   cmd - ?
- *
- */
-
-
-static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
-	struct s_smc *smc = netdev_priv(dev);
-	skfddi_priv *lp = &smc->os;
-	struct s_skfp_ioctl ioc;
-	int status = 0;
-
-	if (copy_from_user(&ioc, rq->ifr_data, sizeof(struct s_skfp_ioctl)))
-		return -EFAULT;
-
-	switch (ioc.cmd) {
-	case SKFP_GET_STATS:	/* Get the driver statistics */
-		ioc.len = sizeof(lp->MacStat);
-		status = copy_to_user(ioc.data, skfp_ctl_get_stats(dev), ioc.len)
-				? -EFAULT : 0;
-		break;
-	case SKFP_CLR_STATS:	/* Zero out the driver statistics */
-		if (!capable(CAP_NET_ADMIN)) {
-			status = -EPERM;
-		} else {
-			memset(&lp->MacStat, 0, sizeof(lp->MacStat));
-		}
-		break;
-	default:
-		printk("ioctl for %s: unknown cmd: %04x\n", dev->name, ioc.cmd);
-		status = -EOPNOTSUPP;
-
-	}			// switch
-
-	return status;
-}				// skfp_ioctl
-
-
-/*
- * =====================
- * = skfp_send_pkt     =
- * =====================
- *   
- * Overview:
- *   Queues a packet for transmission and try to transmit it.
- *  
- * Returns:
- *   Condition code
- *       
- * Arguments:
- *   skb - pointer to sk_buff to queue for transmission
- *   dev - pointer to device information
- *
- * Functional Description:
- *   Here we assume that an incoming skb transmit request
- *   is contained in a single physically contiguous buffer
- *   in which the virtual address of the start of packet
- *   (skb->data) can be converted to a physical address
- *   by using pci_map_single().
- *
- *   We have an internal queue for packets we can not send 
- *   immediately. Packets in this queue can be given to the 
- *   adapter if transmit buffers are freed.
- *
- *   We can't free the skb until after it's been DMA'd
- *   out by the adapter, so we'll keep it in the driver and
- *   return it in mac_drv_tx_complete.
- *
- * Return Codes:
- *   0 - driver has queued and/or sent packet
- *       1 - caller should requeue the sk_buff for later transmission
- *
- * Assumptions:
- *   The entire packet is stored in one physically
- *   contiguous buffer which is not cached and whose
- *   32-bit physical address can be determined.
- *
- *   It's vital that this routine is NOT reentered for the
- *   same board and that the OS is not in another section of
- *   code (eg. skfp_interrupt) for the same board on a
- *   different thread.
- *
- * Side Effects:
- *   None
- */
-static netdev_tx_t skfp_send_pkt(struct sk_buff *skb,
-				       struct net_device *dev)
-{
-	struct s_smc *smc = netdev_priv(dev);
-	skfddi_priv *bp = &smc->os;
-
-	pr_debug("skfp_send_pkt\n");
-
-	/*
-	 * Verify that incoming transmit request is OK
-	 *
-	 * Note: The packet size check is consistent with other
-	 *               Linux device drivers, although the correct packet
-	 *               size should be verified before calling the
-	 *               transmit routine.
-	 */
-
-	if (!(skb->len >= FDDI_K_LLC_ZLEN && skb->len <= FDDI_K_LLC_LEN)) {
-		bp->MacStat.gen.tx_errors++;	/* bump error counter */
-		// dequeue packets from xmt queue and send them
-		netif_start_queue(dev);
-		dev_kfree_skb(skb);
-		return NETDEV_TX_OK;	/* return "success" */
-	}
-	if (bp->QueueSkb == 0) {	// return with tbusy set: queue full
-
-		netif_stop_queue(dev);
-		return NETDEV_TX_BUSY;
-	}
-	bp->QueueSkb--;
-	skb_queue_tail(&bp->SendSkbQueue, skb);
-	send_queued_packets(netdev_priv(dev));
-	if (bp->QueueSkb == 0) {
-		netif_stop_queue(dev);
-	}
-	return NETDEV_TX_OK;
-
-}				// skfp_send_pkt
-
-
-/*
- * =======================
- * = send_queued_packets =
- * =======================
- *   
- * Overview:
- *   Send packets from the driver queue as long as there are some and
- *   transmit resources are available.
- *  
- * Returns:
- *   None
- *       
- * Arguments:
- *   smc - pointer to smc (adapter) structure
- *
- * Functional Description:
- *   Take a packet from queue if there is any. If not, then we are done.
- *   Check if there are resources to send the packet. If not, requeue it
- *   and exit. 
- *   Set packet descriptor flags and give packet to adapter.
- *   Check if any send resources can be freed (we do not use the
- *   transmit complete interrupt).
- */
-static void send_queued_packets(struct s_smc *smc)
-{
-	skfddi_priv *bp = &smc->os;
-	struct sk_buff *skb;
-	unsigned char fc;
-	int queue;
-	struct s_smt_fp_txd *txd;	// Current TxD.
-	dma_addr_t dma_address;
-	unsigned long Flags;
-
-	int frame_status;	// HWM tx frame status.
-
-	pr_debug("send queued packets\n");
-	for (;;) {
-		// send first buffer from queue
-		skb = skb_dequeue(&bp->SendSkbQueue);
-
-		if (!skb) {
-			pr_debug("queue empty\n");
-			return;
-		}		// queue empty !
-
-		spin_lock_irqsave(&bp->DriverLock, Flags);
-		fc = skb->data[0];
-		queue = (fc & FC_SYNC_BIT) ? QUEUE_S : QUEUE_A0;
-#ifdef ESS
-		// Check if the frame may/must be sent as a synchronous frame.
-
-		if ((fc & ~(FC_SYNC_BIT | FC_LLC_PRIOR)) == FC_ASYNC_LLC) {
-			// It's an LLC frame.
-			if (!smc->ess.sync_bw_available)
-				fc &= ~FC_SYNC_BIT; // No bandwidth available.
-
-			else {	// Bandwidth is available.
-
-				if (smc->mib.fddiESSSynchTxMode) {
-					// Send as sync. frame.
-					fc |= FC_SYNC_BIT;
-				}
-			}
-		}
-#endif				// ESS
-		frame_status = hwm_tx_init(smc, fc, 1, skb->len, queue);
-
-		if ((frame_status & (LOC_TX | LAN_TX)) == 0) {
-			// Unable to send the frame.
-
-			if ((frame_status & RING_DOWN) != 0) {
-				// Ring is down.
-				pr_debug("Tx attempt while ring down.\n");
-			} else if ((frame_status & OUT_OF_TXD) != 0) {
-				pr_debug("%s: out of TXDs.\n", bp->dev->name);
-			} else {
-				pr_debug("%s: out of transmit resources",
-					bp->dev->name);
-			}
-
-			// Note: We will retry the operation as soon as
-			// transmit resources become available.
-			skb_queue_head(&bp->SendSkbQueue, skb);
-			spin_unlock_irqrestore(&bp->DriverLock, Flags);
-			return;	// Packet has been queued.
-
-		}		// if (unable to send frame)
-
-		bp->QueueSkb++;	// one packet less in local queue
-
-		// source address in packet ?
-		CheckSourceAddress(skb->data, smc->hw.fddi_canon_addr.a);
-
-		txd = (struct s_smt_fp_txd *) HWM_GET_CURR_TXD(smc, queue);
-
-		dma_address = pci_map_single(&bp->pdev, skb->data,
-					     skb->len, PCI_DMA_TODEVICE);
-		if (frame_status & LAN_TX) {
-			txd->txd_os.skb = skb;			// save skb
-			txd->txd_os.dma_addr = dma_address;	// save dma mapping
-		}
-		hwm_tx_frag(smc, skb->data, dma_address, skb->len,
-                      frame_status | FIRST_FRAG | LAST_FRAG | EN_IRQ_EOF);
-
-		if (!(frame_status & LAN_TX)) {		// local only frame
-			pci_unmap_single(&bp->pdev, dma_address,
-					 skb->len, PCI_DMA_TODEVICE);
-			dev_kfree_skb_irq(skb);
-		}
-		spin_unlock_irqrestore(&bp->DriverLock, Flags);
-	}			// for
-
-	return;			// never reached
-
-}				// send_queued_packets
-
-
-/************************
- * 
- * CheckSourceAddress
- *
- * Verify if the source address is set. Insert it if necessary.
- *
- ************************/
-static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr)
-{
-	unsigned char SRBit;
-
-	if ((((unsigned long) frame[1 + 6]) & ~0x01) != 0) // source routing bit
-
-		return;
-	if ((unsigned short) frame[1 + 10] != 0)
-		return;
-	SRBit = frame[1 + 6] & 0x01;
-	memcpy(&frame[1 + 6], hw_addr, 6);
-	frame[8] |= SRBit;
-}				// CheckSourceAddress
-
-
-/************************
- *
- *	ResetAdapter
- *
- *	Reset the adapter and bring it back to operational mode.
- * Args
- *	smc - A pointer to the SMT context struct.
- * Out
- *	Nothing.
- *
- ************************/
-static void ResetAdapter(struct s_smc *smc)
-{
-
-	pr_debug("[fddi: ResetAdapter]\n");
-
-	// Stop the adapter.
-
-	card_stop(smc);		// Stop all activity.
-
-	// Clear the transmit and receive descriptor queues.
-	mac_drv_clear_tx_queue(smc);
-	mac_drv_clear_rx_queue(smc);
-
-	// Restart the adapter.
-
-	smt_reset_defaults(smc, 1);	// Initialize the SMT module.
-
-	init_smt(smc, (smc->os.dev)->dev_addr);	// Initialize the hardware.
-
-	smt_online(smc, 1);	// Insert into the ring again.
-	STI_FBI();
-
-	// Restore original receive mode (multicasts, promiscuous, etc.).
-	skfp_ctl_set_multicast_list_wo_lock(smc->os.dev);
-}				// ResetAdapter
-
-
-//--------------- functions called by hardware module ----------------
-
-/************************
- *
- *	llc_restart_tx
- *
- *	The hardware driver calls this routine when the transmit complete
- *	interrupt bits (end of frame) for the synchronous or asynchronous
- *	queue is set.
- *
- * NOTE The hardware driver calls this function also if no packets are queued.
- *	The routine must be able to handle this case.
- * Args
- *	smc - A pointer to the SMT context struct.
- * Out
- *	Nothing.
- *
- ************************/
-void llc_restart_tx(struct s_smc *smc)
-{
-	skfddi_priv *bp = &smc->os;
-
-	pr_debug("[llc_restart_tx]\n");
-
-	// Try to send queued packets
-	spin_unlock(&bp->DriverLock);
-	send_queued_packets(smc);
-	spin_lock(&bp->DriverLock);
-	netif_start_queue(bp->dev);// system may send again if it was blocked
-
-}				// llc_restart_tx
-
-
-/************************
- *
- *	mac_drv_get_space
- *
- *	The hardware module calls this function to allocate the memory
- *	for the SMT MBufs if the define MB_OUTSIDE_SMC is specified.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	size - Size of memory in bytes to allocate.
- * Out
- *	!= 0	A pointer to the virtual address of the allocated memory.
- *	== 0	Allocation error.
- *
- ************************/
-void *mac_drv_get_space(struct s_smc *smc, unsigned int size)
-{
-	void *virt;
-
-	pr_debug("mac_drv_get_space (%d bytes), ", size);
-	virt = (void *) (smc->os.SharedMemAddr + smc->os.SharedMemHeap);
-
-	if ((smc->os.SharedMemHeap + size) > smc->os.SharedMemSize) {
-		printk("Unexpected SMT memory size requested: %d\n", size);
-		return NULL;
-	}
-	smc->os.SharedMemHeap += size;	// Move heap pointer.
-
-	pr_debug("mac_drv_get_space end\n");
-	pr_debug("virt addr: %lx\n", (ulong) virt);
-	pr_debug("bus  addr: %lx\n", (ulong)
-	       (smc->os.SharedMemDMA +
-		((char *) virt - (char *)smc->os.SharedMemAddr)));
-	return virt;
-}				// mac_drv_get_space
-
-
-/************************
- *
- *	mac_drv_get_desc_mem
- *
- *	This function is called by the hardware dependent module.
- *	It allocates the memory for the RxD and TxD descriptors.
- *
- *	This memory must be non-cached, non-movable and non-swappable.
- *	This memory should start at a physical page boundary.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	size - Size of memory in bytes to allocate.
- * Out
- *	!= 0	A pointer to the virtual address of the allocated memory.
- *	== 0	Allocation error.
- *
- ************************/
-void *mac_drv_get_desc_mem(struct s_smc *smc, unsigned int size)
-{
-
-	char *virt;
-
-	pr_debug("mac_drv_get_desc_mem\n");
-
-	// Descriptor memory must be aligned on 16-byte boundary.
-
-	virt = mac_drv_get_space(smc, size);
-
-	size = (u_int) (16 - (((unsigned long) virt) & 15UL));
-	size = size % 16;
-
-	pr_debug("Allocate %u bytes alignment gap ", size);
-	pr_debug("for descriptor memory.\n");
-
-	if (!mac_drv_get_space(smc, size)) {
-		printk("fddi: Unable to align descriptor memory.\n");
-		return NULL;
-	}
-	return virt + size;
-}				// mac_drv_get_desc_mem
-
-
-/************************
- *
- *	mac_drv_virt2phys
- *
- *	Get the physical address of a given virtual address.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	virt - A (virtual) pointer into our 'shared' memory area.
- * Out
- *	Physical address of the given virtual address.
- *
- ************************/
-unsigned long mac_drv_virt2phys(struct s_smc *smc, void *virt)
-{
-	return smc->os.SharedMemDMA +
-		((char *) virt - (char *)smc->os.SharedMemAddr);
-}				// mac_drv_virt2phys
-
-
-/************************
- *
- *	dma_master
- *
- *	The HWM calls this function, when the driver leads through a DMA
- *	transfer. If the OS-specific module must prepare the system hardware
- *	for the DMA transfer, it should do it in this function.
- *
- *	The hardware module calls this dma_master if it wants to send an SMT
- *	frame.  This means that the virt address passed in here is part of
- *      the 'shared' memory area.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	virt - The virtual address of the data.
- *
- *	len - The length in bytes of the data.
- *
- *	flag - Indicates the transmit direction and the buffer type:
- *		DMA_RD	(0x01)	system RAM ==> adapter buffer memory
- *		DMA_WR	(0x02)	adapter buffer memory ==> system RAM
- *		SMT_BUF (0x80)	SMT buffer
- *
- *	>> NOTE: SMT_BUF and DMA_RD are always set for PCI. <<
- * Out
- *	Returns the pyhsical address for the DMA transfer.
- *
- ************************/
-u_long dma_master(struct s_smc * smc, void *virt, int len, int flag)
-{
-	return smc->os.SharedMemDMA +
-		((char *) virt - (char *)smc->os.SharedMemAddr);
-}				// dma_master
-
-
-/************************
- *
- *	dma_complete
- *
- *	The hardware module calls this routine when it has completed a DMA
- *	transfer. If the operating system dependent module has set up the DMA
- *	channel via dma_master() (e.g. Windows NT or AIX) it should clean up
- *	the DMA channel.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	descr - A pointer to a TxD or RxD, respectively.
- *
- *	flag - Indicates the DMA transfer direction / SMT buffer:
- *		DMA_RD	(0x01)	system RAM ==> adapter buffer memory
- *		DMA_WR	(0x02)	adapter buffer memory ==> system RAM
- *		SMT_BUF (0x80)	SMT buffer (managed by HWM)
- * Out
- *	Nothing.
- *
- ************************/
-void dma_complete(struct s_smc *smc, volatile union s_fp_descr *descr, int flag)
-{
-	/* For TX buffers, there are two cases.  If it is an SMT transmit
-	 * buffer, there is nothing to do since we use consistent memory
-	 * for the 'shared' memory area.  The other case is for normal
-	 * transmit packets given to us by the networking stack, and in
-	 * that case we cleanup the PCI DMA mapping in mac_drv_tx_complete
-	 * below.
-	 *
-	 * For RX buffers, we have to unmap dynamic PCI DMA mappings here
-	 * because the hardware module is about to potentially look at
-	 * the contents of the buffer.  If we did not call the PCI DMA
-	 * unmap first, the hardware module could read inconsistent data.
-	 */
-	if (flag & DMA_WR) {
-		skfddi_priv *bp = &smc->os;
-		volatile struct s_smt_fp_rxd *r = &descr->r;
-
-		/* If SKB is NULL, we used the local buffer. */
-		if (r->rxd_os.skb && r->rxd_os.dma_addr) {
-			int MaxFrameSize = bp->MaxFrameSize;
-
-			pci_unmap_single(&bp->pdev, r->rxd_os.dma_addr,
-					 MaxFrameSize, PCI_DMA_FROMDEVICE);
-			r->rxd_os.dma_addr = 0;
-		}
-	}
-}				// dma_complete
-
-
-/************************
- *
- *	mac_drv_tx_complete
- *
- *	Transmit of a packet is complete. Release the tx staging buffer.
- *
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	txd - A pointer to the last TxD which is used by the frame.
- * Out
- *	Returns nothing.
- *
- ************************/
-void mac_drv_tx_complete(struct s_smc *smc, volatile struct s_smt_fp_txd *txd)
-{
-	struct sk_buff *skb;
-
-	pr_debug("entering mac_drv_tx_complete\n");
-	// Check if this TxD points to a skb
-
-	if (!(skb = txd->txd_os.skb)) {
-		pr_debug("TXD with no skb assigned.\n");
-		return;
-	}
-	txd->txd_os.skb = NULL;
-
-	// release the DMA mapping
-	pci_unmap_single(&smc->os.pdev, txd->txd_os.dma_addr,
-			 skb->len, PCI_DMA_TODEVICE);
-	txd->txd_os.dma_addr = 0;
-
-	smc->os.MacStat.gen.tx_packets++;	// Count transmitted packets.
-	smc->os.MacStat.gen.tx_bytes+=skb->len;	// Count bytes
-
-	// free the skb
-	dev_kfree_skb_irq(skb);
-
-	pr_debug("leaving mac_drv_tx_complete\n");
-}				// mac_drv_tx_complete
-
-
-/************************
- *
- * dump packets to logfile
- *
- ************************/
-#ifdef DUMPPACKETS
-void dump_data(unsigned char *Data, int length)
-{
-	int i, j;
-	unsigned char s[255], sh[10];
-	if (length > 64) {
-		length = 64;
-	}
-	printk(KERN_INFO "---Packet start---\n");
-	for (i = 0, j = 0; i < length / 8; i++, j += 8)
-		printk(KERN_INFO "%02x %02x %02x %02x %02x %02x %02x %02x\n",
-		       Data[j + 0], Data[j + 1], Data[j + 2], Data[j + 3],
-		       Data[j + 4], Data[j + 5], Data[j + 6], Data[j + 7]);
-	strcpy(s, "");
-	for (i = 0; i < length % 8; i++) {
-		sprintf(sh, "%02x ", Data[j + i]);
-		strcat(s, sh);
-	}
-	printk(KERN_INFO "%s\n", s);
-	printk(KERN_INFO "------------------\n");
-}				// dump_data
-#else
-#define dump_data(data,len)
-#endif				// DUMPPACKETS
-
-/************************
- *
- *	mac_drv_rx_complete
- *
- *	The hardware module calls this function if an LLC frame is received
- *	in a receive buffer. Also the SMT, NSA, and directed beacon frames
- *	from the network will be passed to the LLC layer by this function
- *	if passing is enabled.
- *
- *	mac_drv_rx_complete forwards the frame to the LLC layer if it should
- *	be received. It also fills the RxD ring with new receive buffers if
- *	some can be queued.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	rxd - A pointer to the first RxD which is used by the receive frame.
- *
- *	frag_count - Count of RxDs used by the received frame.
- *
- *	len - Frame length.
- * Out
- *	Nothing.
- *
- ************************/
-void mac_drv_rx_complete(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
-			 int frag_count, int len)
-{
-	skfddi_priv *bp = &smc->os;
-	struct sk_buff *skb;
-	unsigned char *virt, *cp;
-	unsigned short ri;
-	u_int RifLength;
-
-	pr_debug("entering mac_drv_rx_complete (len=%d)\n", len);
-	if (frag_count != 1) {	// This is not allowed to happen.
-
-		printk("fddi: Multi-fragment receive!\n");
-		goto RequeueRxd;	// Re-use the given RXD(s).
-
-	}
-	skb = rxd->rxd_os.skb;
-	if (!skb) {
-		pr_debug("No skb in rxd\n");
-		smc->os.MacStat.gen.rx_errors++;
-		goto RequeueRxd;
-	}
-	virt = skb->data;
-
-	// The DMA mapping was released in dma_complete above.
-
-	dump_data(skb->data, len);
-
-	/*
-	 * FDDI Frame format:
-	 * +-------+-------+-------+------------+--------+------------+
-	 * | FC[1] | DA[6] | SA[6] | RIF[0..18] | LLC[3] | Data[0..n] |
-	 * +-------+-------+-------+------------+--------+------------+
-	 *
-	 * FC = Frame Control
-	 * DA = Destination Address
-	 * SA = Source Address
-	 * RIF = Routing Information Field
-	 * LLC = Logical Link Control
-	 */
-
-	// Remove Routing Information Field (RIF), if present.
-
-	if ((virt[1 + 6] & FDDI_RII) == 0)
-		RifLength = 0;
-	else {
-		int n;
-// goos: RIF removal has still to be tested
-		pr_debug("RIF found\n");
-		// Get RIF length from Routing Control (RC) field.
-		cp = virt + FDDI_MAC_HDR_LEN;	// Point behind MAC header.
-
-		ri = ntohs(*((__be16 *) cp));
-		RifLength = ri & FDDI_RCF_LEN_MASK;
-		if (len < (int) (FDDI_MAC_HDR_LEN + RifLength)) {
-			printk("fddi: Invalid RIF.\n");
-			goto RequeueRxd;	// Discard the frame.
-
-		}
-		virt[1 + 6] &= ~FDDI_RII;	// Clear RII bit.
-		// regions overlap
-
-		virt = cp + RifLength;
-		for (n = FDDI_MAC_HDR_LEN; n; n--)
-			*--virt = *--cp;
-		// adjust sbd->data pointer
-		skb_pull(skb, RifLength);
-		len -= RifLength;
-		RifLength = 0;
-	}
-
-	// Count statistics.
-	smc->os.MacStat.gen.rx_packets++;	// Count indicated receive
-						// packets.
-	smc->os.MacStat.gen.rx_bytes+=len;	// Count bytes.
-
-	// virt points to header again
-	if (virt[1] & 0x01) {	// Check group (multicast) bit.
-
-		smc->os.MacStat.gen.multicast++;
-	}
-
-	// deliver frame to system
-	rxd->rxd_os.skb = NULL;
-	skb_trim(skb, len);
-	skb->protocol = fddi_type_trans(skb, bp->dev);
-
-	netif_rx(skb);
-
-	HWM_RX_CHECK(smc, RX_LOW_WATERMARK);
-	return;
-
-      RequeueRxd:
-	pr_debug("Rx: re-queue RXD.\n");
-	mac_drv_requeue_rxd(smc, rxd, frag_count);
-	smc->os.MacStat.gen.rx_errors++;	// Count receive packets
-						// not indicated.
-
-}				// mac_drv_rx_complete
-
-
-/************************
- *
- *	mac_drv_requeue_rxd
- *
- *	The hardware module calls this function to request the OS-specific
- *	module to queue the receive buffer(s) represented by the pointer
- *	to the RxD and the frag_count into the receive queue again. This
- *	buffer was filled with an invalid frame or an SMT frame.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	rxd - A pointer to the first RxD which is used by the receive frame.
- *
- *	frag_count - Count of RxDs used by the received frame.
- * Out
- *	Nothing.
- *
- ************************/
-void mac_drv_requeue_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
-			 int frag_count)
-{
-	volatile struct s_smt_fp_rxd *next_rxd;
-	volatile struct s_smt_fp_rxd *src_rxd;
-	struct sk_buff *skb;
-	int MaxFrameSize;
-	unsigned char *v_addr;
-	dma_addr_t b_addr;
-
-	if (frag_count != 1)	// This is not allowed to happen.
-
-		printk("fddi: Multi-fragment requeue!\n");
-
-	MaxFrameSize = smc->os.MaxFrameSize;
-	src_rxd = rxd;
-	for (; frag_count > 0; frag_count--) {
-		next_rxd = src_rxd->rxd_next;
-		rxd = HWM_GET_CURR_RXD(smc);
-
-		skb = src_rxd->rxd_os.skb;
-		if (skb == NULL) {	// this should not happen
-
-			pr_debug("Requeue with no skb in rxd!\n");
-			skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC);
-			if (skb) {
-				// we got a skb
-				rxd->rxd_os.skb = skb;
-				skb_reserve(skb, 3);
-				skb_put(skb, MaxFrameSize);
-				v_addr = skb->data;
-				b_addr = pci_map_single(&smc->os.pdev,
-							v_addr,
-							MaxFrameSize,
-							PCI_DMA_FROMDEVICE);
-				rxd->rxd_os.dma_addr = b_addr;
-			} else {
-				// no skb available, use local buffer
-				pr_debug("Queueing invalid buffer!\n");
-				rxd->rxd_os.skb = NULL;
-				v_addr = smc->os.LocalRxBuffer;
-				b_addr = smc->os.LocalRxBufferDMA;
-			}
-		} else {
-			// we use skb from old rxd
-			rxd->rxd_os.skb = skb;
-			v_addr = skb->data;
-			b_addr = pci_map_single(&smc->os.pdev,
-						v_addr,
-						MaxFrameSize,
-						PCI_DMA_FROMDEVICE);
-			rxd->rxd_os.dma_addr = b_addr;
-		}
-		hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize,
-			    FIRST_FRAG | LAST_FRAG);
-
-		src_rxd = next_rxd;
-	}
-}				// mac_drv_requeue_rxd
-
-
-/************************
- *
- *	mac_drv_fill_rxd
- *
- *	The hardware module calls this function at initialization time
- *	to fill the RxD ring with receive buffers. It is also called by
- *	mac_drv_rx_complete if rx_free is large enough to queue some new
- *	receive buffers into the RxD ring. mac_drv_fill_rxd queues new
- *	receive buffers as long as enough RxDs and receive buffers are
- *	available.
- * Args
- *	smc - A pointer to the SMT context struct.
- * Out
- *	Nothing.
- *
- ************************/
-void mac_drv_fill_rxd(struct s_smc *smc)
-{
-	int MaxFrameSize;
-	unsigned char *v_addr;
-	unsigned long b_addr;
-	struct sk_buff *skb;
-	volatile struct s_smt_fp_rxd *rxd;
-
-	pr_debug("entering mac_drv_fill_rxd\n");
-
-	// Walk through the list of free receive buffers, passing receive
-	// buffers to the HWM as long as RXDs are available.
-
-	MaxFrameSize = smc->os.MaxFrameSize;
-	// Check if there is any RXD left.
-	while (HWM_GET_RX_FREE(smc) > 0) {
-		pr_debug(".\n");
-
-		rxd = HWM_GET_CURR_RXD(smc);
-		skb = alloc_skb(MaxFrameSize + 3, GFP_ATOMIC);
-		if (skb) {
-			// we got a skb
-			skb_reserve(skb, 3);
-			skb_put(skb, MaxFrameSize);
-			v_addr = skb->data;
-			b_addr = pci_map_single(&smc->os.pdev,
-						v_addr,
-						MaxFrameSize,
-						PCI_DMA_FROMDEVICE);
-			rxd->rxd_os.dma_addr = b_addr;
-		} else {
-			// no skb available, use local buffer
-			// System has run out of buffer memory, but we want to
-			// keep the receiver running in hope of better times.
-			// Multiple descriptors may point to this local buffer,
-			// so data in it must be considered invalid.
-			pr_debug("Queueing invalid buffer!\n");
-			v_addr = smc->os.LocalRxBuffer;
-			b_addr = smc->os.LocalRxBufferDMA;
-		}
-
-		rxd->rxd_os.skb = skb;
-
-		// Pass receive buffer to HWM.
-		hwm_rx_frag(smc, v_addr, b_addr, MaxFrameSize,
-			    FIRST_FRAG | LAST_FRAG);
-	}
-	pr_debug("leaving mac_drv_fill_rxd\n");
-}				// mac_drv_fill_rxd
-
-
-/************************
- *
- *	mac_drv_clear_rxd
- *
- *	The hardware module calls this function to release unused
- *	receive buffers.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	rxd - A pointer to the first RxD which is used by the receive buffer.
- *
- *	frag_count - Count of RxDs used by the receive buffer.
- * Out
- *	Nothing.
- *
- ************************/
-void mac_drv_clear_rxd(struct s_smc *smc, volatile struct s_smt_fp_rxd *rxd,
-		       int frag_count)
-{
-
-	struct sk_buff *skb;
-
-	pr_debug("entering mac_drv_clear_rxd\n");
-
-	if (frag_count != 1)	// This is not allowed to happen.
-
-		printk("fddi: Multi-fragment clear!\n");
-
-	for (; frag_count > 0; frag_count--) {
-		skb = rxd->rxd_os.skb;
-		if (skb != NULL) {
-			skfddi_priv *bp = &smc->os;
-			int MaxFrameSize = bp->MaxFrameSize;
-
-			pci_unmap_single(&bp->pdev, rxd->rxd_os.dma_addr,
-					 MaxFrameSize, PCI_DMA_FROMDEVICE);
-
-			dev_kfree_skb(skb);
-			rxd->rxd_os.skb = NULL;
-		}
-		rxd = rxd->rxd_next;	// Next RXD.
-
-	}
-}				// mac_drv_clear_rxd
-
-
-/************************
- *
- *	mac_drv_rx_init
- *
- *	The hardware module calls this routine when an SMT or NSA frame of the
- *	local SMT should be delivered to the LLC layer.
- *
- *	It is necessary to have this function, because there is no other way to
- *	copy the contents of SMT MBufs into receive buffers.
- *
- *	mac_drv_rx_init allocates the required target memory for this frame,
- *	and receives the frame fragment by fragment by calling mac_drv_rx_frag.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	len - The length (in bytes) of the received frame (FC, DA, SA, Data).
- *
- *	fc - The Frame Control field of the received frame.
- *
- *	look_ahead - A pointer to the lookahead data buffer (may be NULL).
- *
- *	la_len - The length of the lookahead data stored in the lookahead
- *	buffer (may be zero).
- * Out
- *	Always returns zero (0).
- *
- ************************/
-int mac_drv_rx_init(struct s_smc *smc, int len, int fc,
-		    char *look_ahead, int la_len)
-{
-	struct sk_buff *skb;
-
-	pr_debug("entering mac_drv_rx_init(len=%d)\n", len);
-
-	// "Received" a SMT or NSA frame of the local SMT.
-
-	if (len != la_len || len < FDDI_MAC_HDR_LEN || !look_ahead) {
-		pr_debug("fddi: Discard invalid local SMT frame\n");
-		pr_debug("  len=%d, la_len=%d, (ULONG) look_ahead=%08lXh.\n",
-		       len, la_len, (unsigned long) look_ahead);
-		return 0;
-	}
-	skb = alloc_skb(len + 3, GFP_ATOMIC);
-	if (!skb) {
-		pr_debug("fddi: Local SMT: skb memory exhausted.\n");
-		return 0;
-	}
-	skb_reserve(skb, 3);
-	skb_put(skb, len);
-	skb_copy_to_linear_data(skb, look_ahead, len);
-
-	// deliver frame to system
-	skb->protocol = fddi_type_trans(skb, smc->os.dev);
-	netif_rx(skb);
-
-	return 0;
-}				// mac_drv_rx_init
-
-
-/************************
- *
- *	smt_timer_poll
- *
- *	This routine is called periodically by the SMT module to clean up the
- *	driver.
- *
- *	Return any queued frames back to the upper protocol layers if the ring
- *	is down.
- * Args
- *	smc - A pointer to the SMT context struct.
- * Out
- *	Nothing.
- *
- ************************/
-void smt_timer_poll(struct s_smc *smc)
-{
-}				// smt_timer_poll
-
-
-/************************
- *
- *	ring_status_indication
- *
- *	This function indicates a change of the ring state.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	status - The current ring status.
- * Out
- *	Nothing.
- *
- ************************/
-void ring_status_indication(struct s_smc *smc, u_long status)
-{
-	pr_debug("ring_status_indication( ");
-	if (status & RS_RES15)
-		pr_debug("RS_RES15 ");
-	if (status & RS_HARDERROR)
-		pr_debug("RS_HARDERROR ");
-	if (status & RS_SOFTERROR)
-		pr_debug("RS_SOFTERROR ");
-	if (status & RS_BEACON)
-		pr_debug("RS_BEACON ");
-	if (status & RS_PATHTEST)
-		pr_debug("RS_PATHTEST ");
-	if (status & RS_SELFTEST)
-		pr_debug("RS_SELFTEST ");
-	if (status & RS_RES9)
-		pr_debug("RS_RES9 ");
-	if (status & RS_DISCONNECT)
-		pr_debug("RS_DISCONNECT ");
-	if (status & RS_RES7)
-		pr_debug("RS_RES7 ");
-	if (status & RS_DUPADDR)
-		pr_debug("RS_DUPADDR ");
-	if (status & RS_NORINGOP)
-		pr_debug("RS_NORINGOP ");
-	if (status & RS_VERSION)
-		pr_debug("RS_VERSION ");
-	if (status & RS_STUCKBYPASSS)
-		pr_debug("RS_STUCKBYPASSS ");
-	if (status & RS_EVENT)
-		pr_debug("RS_EVENT ");
-	if (status & RS_RINGOPCHANGE)
-		pr_debug("RS_RINGOPCHANGE ");
-	if (status & RS_RES0)
-		pr_debug("RS_RES0 ");
-	pr_debug("]\n");
-}				// ring_status_indication
-
-
-/************************
- *
- *	smt_get_time
- *
- *	Gets the current time from the system.
- * Args
- *	None.
- * Out
- *	The current time in TICKS_PER_SECOND.
- *
- *	TICKS_PER_SECOND has the unit 'count of timer ticks per second'. It is
- *	defined in "targetos.h". The definition of TICKS_PER_SECOND must comply
- *	to the time returned by smt_get_time().
- *
- ************************/
-unsigned long smt_get_time(void)
-{
-	return jiffies;
-}				// smt_get_time
-
-
-/************************
- *
- *	smt_stat_counter
- *
- *	Status counter update (ring_op, fifo full).
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	stat -	= 0: A ring operational change occurred.
- *		= 1: The FORMAC FIFO buffer is full / FIFO overflow.
- * Out
- *	Nothing.
- *
- ************************/
-void smt_stat_counter(struct s_smc *smc, int stat)
-{
-//      BOOLEAN RingIsUp ;
-
-	pr_debug("smt_stat_counter\n");
-	switch (stat) {
-	case 0:
-		pr_debug("Ring operational change.\n");
-		break;
-	case 1:
-		pr_debug("Receive fifo overflow.\n");
-		smc->os.MacStat.gen.rx_errors++;
-		break;
-	default:
-		pr_debug("Unknown status (%d).\n", stat);
-		break;
-	}
-}				// smt_stat_counter
-
-
-/************************
- *
- *	cfm_state_change
- *
- *	Sets CFM state in custom statistics.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	c_state - Possible values are:
- *
- *		EC0_OUT, EC1_IN, EC2_TRACE, EC3_LEAVE, EC4_PATH_TEST,
- *		EC5_INSERT, EC6_CHECK, EC7_DEINSERT
- * Out
- *	Nothing.
- *
- ************************/
-void cfm_state_change(struct s_smc *smc, int c_state)
-{
-#ifdef DRIVERDEBUG
-	char *s;
-
-	switch (c_state) {
-	case SC0_ISOLATED:
-		s = "SC0_ISOLATED";
-		break;
-	case SC1_WRAP_A:
-		s = "SC1_WRAP_A";
-		break;
-	case SC2_WRAP_B:
-		s = "SC2_WRAP_B";
-		break;
-	case SC4_THRU_A:
-		s = "SC4_THRU_A";
-		break;
-	case SC5_THRU_B:
-		s = "SC5_THRU_B";
-		break;
-	case SC7_WRAP_S:
-		s = "SC7_WRAP_S";
-		break;
-	case SC9_C_WRAP_A:
-		s = "SC9_C_WRAP_A";
-		break;
-	case SC10_C_WRAP_B:
-		s = "SC10_C_WRAP_B";
-		break;
-	case SC11_C_WRAP_S:
-		s = "SC11_C_WRAP_S";
-		break;
-	default:
-		pr_debug("cfm_state_change: unknown %d\n", c_state);
-		return;
-	}
-	pr_debug("cfm_state_change: %s\n", s);
-#endif				// DRIVERDEBUG
-}				// cfm_state_change
-
-
-/************************
- *
- *	ecm_state_change
- *
- *	Sets ECM state in custom statistics.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	e_state - Possible values are:
- *
- *		SC0_ISOLATED, SC1_WRAP_A (5), SC2_WRAP_B (6), SC4_THRU_A (12),
- *		SC5_THRU_B (7), SC7_WRAP_S (8)
- * Out
- *	Nothing.
- *
- ************************/
-void ecm_state_change(struct s_smc *smc, int e_state)
-{
-#ifdef DRIVERDEBUG
-	char *s;
-
-	switch (e_state) {
-	case EC0_OUT:
-		s = "EC0_OUT";
-		break;
-	case EC1_IN:
-		s = "EC1_IN";
-		break;
-	case EC2_TRACE:
-		s = "EC2_TRACE";
-		break;
-	case EC3_LEAVE:
-		s = "EC3_LEAVE";
-		break;
-	case EC4_PATH_TEST:
-		s = "EC4_PATH_TEST";
-		break;
-	case EC5_INSERT:
-		s = "EC5_INSERT";
-		break;
-	case EC6_CHECK:
-		s = "EC6_CHECK";
-		break;
-	case EC7_DEINSERT:
-		s = "EC7_DEINSERT";
-		break;
-	default:
-		s = "unknown";
-		break;
-	}
-	pr_debug("ecm_state_change: %s\n", s);
-#endif				//DRIVERDEBUG
-}				// ecm_state_change
-
-
-/************************
- *
- *	rmt_state_change
- *
- *	Sets RMT state in custom statistics.
- * Args
- *	smc - A pointer to the SMT context struct.
- *
- *	r_state - Possible values are:
- *
- *		RM0_ISOLATED, RM1_NON_OP, RM2_RING_OP, RM3_DETECT,
- *		RM4_NON_OP_DUP, RM5_RING_OP_DUP, RM6_DIRECTED, RM7_TRACE
- * Out
- *	Nothing.
- *
- ************************/
-void rmt_state_change(struct s_smc *smc, int r_state)
-{
-#ifdef DRIVERDEBUG
-	char *s;
-
-	switch (r_state) {
-	case RM0_ISOLATED:
-		s = "RM0_ISOLATED";
-		break;
-	case RM1_NON_OP:
-		s = "RM1_NON_OP - not operational";
-		break;
-	case RM2_RING_OP:
-		s = "RM2_RING_OP - ring operational";
-		break;
-	case RM3_DETECT:
-		s = "RM3_DETECT - detect dupl addresses";
-		break;
-	case RM4_NON_OP_DUP:
-		s = "RM4_NON_OP_DUP - dupl. addr detected";
-		break;
-	case RM5_RING_OP_DUP:
-		s = "RM5_RING_OP_DUP - ring oper. with dupl. addr";
-		break;
-	case RM6_DIRECTED:
-		s = "RM6_DIRECTED - sending directed beacons";
-		break;
-	case RM7_TRACE:
-		s = "RM7_TRACE - trace initiated";
-		break;
-	default:
-		s = "unknown";
-		break;
-	}
-	pr_debug("[rmt_state_change: %s]\n", s);
-#endif				// DRIVERDEBUG
-}				// rmt_state_change
-
-
-/************************
- *
- *	drv_reset_indication
- *
- *	This function is called by the SMT when it has detected a severe
- *	hardware problem. The driver should perform a reset on the adapter
- *	as soon as possible, but not from within this function.
- * Args
- *	smc - A pointer to the SMT context struct.
- * Out
- *	Nothing.
- *
- ************************/
-void drv_reset_indication(struct s_smc *smc)
-{
-	pr_debug("entering drv_reset_indication\n");
-
-	smc->os.ResetRequested = TRUE;	// Set flag.
-
-}				// drv_reset_indication
-
-static struct pci_driver skfddi_pci_driver = {
-	.name		= "skfddi",
-	.id_table	= skfddi_pci_tbl,
-	.probe		= skfp_init_one,
-	.remove		= __devexit_p(skfp_remove_one),
-};
-
-static int __init skfd_init(void)
-{
-	return pci_register_driver(&skfddi_pci_driver);
-}
-
-static void __exit skfd_exit(void)
-{
-	pci_unregister_driver(&skfddi_pci_driver);
-}
-
-module_init(skfd_init);
-module_exit(skfd_exit);