net: wan: remove the lanmedia (lmc) driver

The driver for LAN Media WAN interfaces spews build warnings on
microblaze. The virt_to_bus() calls discard the volatile keyword.
The right thing to do would be to migrate this driver to a modern
DMA API but it seems unlikely anyone is actually using it.
There had been no fixes or functional changes here since
the git era begun.

Let's remove this driver, there isn't much changing in the APIs,
if users come forward we can apologize and revert.

Link: https://lore.kernel.org/all/20220321144013.440d7fc0@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 2009 deletions

diff --git a/drivers/net/wan/lmc/lmc_main.c b/drivers/net/wan/lmc/lmc_main.c
deleted file mode 100644
index 76c6b4f89890..000000000000
--- a/drivers/net/wan/lmc/lmc_main.c
+++ /dev/null
@@ -1,2009 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
- /*
-  * Copyright (c) 1997-2000 LAN Media Corporation (LMC)
-  * All rights reserved.  www.lanmedia.com
-  * Generic HDLC port Copyright (C) 2008 Krzysztof Halasa <khc@pm.waw.pl>
-  *
-  * This code is written by:
-  * Andrew Stanley-Jones (asj@cban.com)
-  * Rob Braun (bbraun@vix.com),
-  * Michael Graff (explorer@vix.com) and
-  * Matt Thomas (matt@3am-software.com).
-  *
-  * With Help By:
-  * David Boggs
-  * Ron Crane
-  * Alan Cox
-  *
-  * Driver for the LanMedia LMC5200, LMC5245, LMC1000, LMC1200 cards.
-  *
-  * To control link specific options lmcctl is required.
-  * It can be obtained from ftp.lanmedia.com.
-  *
-  * Linux driver notes:
-  * Linux uses the device struct lmc_private to pass private information
-  * around.
-  *
-  * The initialization portion of this driver (the lmc_reset() and the
-  * lmc_dec_reset() functions, as well as the led controls and the
-  * lmc_initcsrs() functions.
-  *
-  * The watchdog function runs every second and checks to see if
-  * we still have link, and that the timing source is what we expected
-  * it to be.  If link is lost, the interface is marked down, and
-  * we no longer can transmit.
-  */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/hdlc.h>
-#include <linux/in.h>
-#include <linux/if_arp.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/inet.h>
-#include <linux/bitops.h>
-#include <asm/processor.h>             /* Processor type for cache alignment. */
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <linux/uaccess.h>
-#include <linux/jiffies.h>
-//#include <asm/spinlock.h>
-
-#define DRIVER_MAJOR_VERSION     1
-#define DRIVER_MINOR_VERSION    34
-#define DRIVER_SUB_VERSION       0
-
-#define DRIVER_VERSION  ((DRIVER_MAJOR_VERSION << 8) + DRIVER_MINOR_VERSION)
-
-#include "lmc.h"
-#include "lmc_var.h"
-#include "lmc_ioctl.h"
-#include "lmc_debug.h"
-#include "lmc_proto.h"
-
-static int LMC_PKT_BUF_SZ = 1542;
-
-static const struct pci_device_id lmc_pci_tbl[] = {
-	{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST,
-	  PCI_VENDOR_ID_LMC, PCI_ANY_ID },
-	{ PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST,
-	  PCI_ANY_ID, PCI_VENDOR_ID_LMC },
-	{ 0 }
-};
-
-MODULE_DEVICE_TABLE(pci, lmc_pci_tbl);
-MODULE_LICENSE("GPL v2");
-
-
-static netdev_tx_t lmc_start_xmit(struct sk_buff *skb,
-					struct net_device *dev);
-static int lmc_rx (struct net_device *dev);
-static int lmc_open(struct net_device *dev);
-static int lmc_close(struct net_device *dev);
-static struct net_device_stats *lmc_get_stats(struct net_device *dev);
-static irqreturn_t lmc_interrupt(int irq, void *dev_instance);
-static void lmc_initcsrs(lmc_softc_t * const sc, lmc_csrptr_t csr_base, size_t csr_size);
-static void lmc_softreset(lmc_softc_t * const);
-static void lmc_running_reset(struct net_device *dev);
-static int lmc_ifdown(struct net_device * const);
-static void lmc_watchdog(struct timer_list *t);
-static void lmc_reset(lmc_softc_t * const sc);
-static void lmc_dec_reset(lmc_softc_t * const sc);
-static void lmc_driver_timeout(struct net_device *dev, unsigned int txqueue);
-
-/*
- * linux reserves 16 device specific IOCTLs.  We call them
- * LMCIOC* to control various bits of our world.
- */
-static int lmc_siocdevprivate(struct net_device *dev, struct ifreq *ifr,
-			      void __user *data, int cmd) /*fold00*/
-{
-    lmc_softc_t *sc = dev_to_sc(dev);
-    lmc_ctl_t ctl;
-    int ret = -EOPNOTSUPP;
-    u16 regVal;
-    unsigned long flags;
-
-    /*
-     * Most functions mess with the structure
-     * Disable interrupts while we do the polling
-     */
-
-    switch (cmd) {
-        /*
-         * Return current driver state.  Since we keep this up
-         * To date internally, just copy this out to the user.
-         */
-    case LMCIOCGINFO: /*fold01*/
-	if (copy_to_user(data, &sc->ictl, sizeof(lmc_ctl_t)))
-		ret = -EFAULT;
-	else
-		ret = 0;
-        break;
-
-    case LMCIOCSINFO: /*fold01*/
-        if (!capable(CAP_NET_ADMIN)) {
-            ret = -EPERM;
-            break;
-        }
-
-        if(dev->flags & IFF_UP){
-            ret = -EBUSY;
-            break;
-        }
-
-	if (copy_from_user(&ctl, data, sizeof(lmc_ctl_t))) {
-		ret = -EFAULT;
-		break;
-	}
-
-	spin_lock_irqsave(&sc->lmc_lock, flags);
-        sc->lmc_media->set_status (sc, &ctl);
-
-        if(ctl.crc_length != sc->ictl.crc_length) {
-            sc->lmc_media->set_crc_length(sc, ctl.crc_length);
-	    if (sc->ictl.crc_length == LMC_CTL_CRC_LENGTH_16)
-		sc->TxDescriptControlInit |=  LMC_TDES_ADD_CRC_DISABLE;
-	    else
-		sc->TxDescriptControlInit &= ~LMC_TDES_ADD_CRC_DISABLE;
-        }
-	spin_unlock_irqrestore(&sc->lmc_lock, flags);
-
-        ret = 0;
-        break;
-
-    case LMCIOCIFTYPE: /*fold01*/
-        {
-	    u16 old_type = sc->if_type;
-	    u16	new_type;
-
-	    if (!capable(CAP_NET_ADMIN)) {
-		ret = -EPERM;
-		break;
-	    }
-
-	    if (copy_from_user(&new_type, data, sizeof(u16))) {
-		ret = -EFAULT;
-		break;
-	    }
-
-            
-	    if (new_type == old_type)
-	    {
-		ret = 0 ;
-		break;				/* no change */
-            }
-            
-	    spin_lock_irqsave(&sc->lmc_lock, flags);
-            lmc_proto_close(sc);
-
-            sc->if_type = new_type;
-            lmc_proto_attach(sc);
-	    ret = lmc_proto_open(sc);
-	    spin_unlock_irqrestore(&sc->lmc_lock, flags);
-	    break;
-	}
-
-    case LMCIOCGETXINFO: /*fold01*/
-	spin_lock_irqsave(&sc->lmc_lock, flags);
-        sc->lmc_xinfo.Magic0 = 0xBEEFCAFE;
-
-        sc->lmc_xinfo.PciCardType = sc->lmc_cardtype;
-        sc->lmc_xinfo.PciSlotNumber = 0;
-        sc->lmc_xinfo.DriverMajorVersion = DRIVER_MAJOR_VERSION;
-        sc->lmc_xinfo.DriverMinorVersion = DRIVER_MINOR_VERSION;
-        sc->lmc_xinfo.DriverSubVersion = DRIVER_SUB_VERSION;
-        sc->lmc_xinfo.XilinxRevisionNumber =
-            lmc_mii_readreg (sc, 0, 3) & 0xf;
-        sc->lmc_xinfo.MaxFrameSize = LMC_PKT_BUF_SZ;
-        sc->lmc_xinfo.link_status = sc->lmc_media->get_link_status (sc);
-        sc->lmc_xinfo.mii_reg16 = lmc_mii_readreg (sc, 0, 16);
-	spin_unlock_irqrestore(&sc->lmc_lock, flags);
-
-        sc->lmc_xinfo.Magic1 = 0xDEADBEEF;
-
-	if (copy_to_user(data, &sc->lmc_xinfo, sizeof(struct lmc_xinfo)))
-		ret = -EFAULT;
-	else
-		ret = 0;
-
-        break;
-
-    case LMCIOCGETLMCSTATS:
-	    spin_lock_irqsave(&sc->lmc_lock, flags);
-	    if (sc->lmc_cardtype == LMC_CARDTYPE_T1) {
-		    lmc_mii_writereg(sc, 0, 17, T1FRAMER_FERR_LSB);
-		    sc->extra_stats.framingBitErrorCount +=
-			    lmc_mii_readreg(sc, 0, 18) & 0xff;
-		    lmc_mii_writereg(sc, 0, 17, T1FRAMER_FERR_MSB);
-		    sc->extra_stats.framingBitErrorCount +=
-			    (lmc_mii_readreg(sc, 0, 18) & 0xff) << 8;
-		    lmc_mii_writereg(sc, 0, 17, T1FRAMER_LCV_LSB);
-		    sc->extra_stats.lineCodeViolationCount +=
-			    lmc_mii_readreg(sc, 0, 18) & 0xff;
-		    lmc_mii_writereg(sc, 0, 17, T1FRAMER_LCV_MSB);
-		    sc->extra_stats.lineCodeViolationCount +=
-			    (lmc_mii_readreg(sc, 0, 18) & 0xff) << 8;
-		    lmc_mii_writereg(sc, 0, 17, T1FRAMER_AERR);
-		    regVal = lmc_mii_readreg(sc, 0, 18) & 0xff;
-
-		    sc->extra_stats.lossOfFrameCount +=
-			    (regVal & T1FRAMER_LOF_MASK) >> 4;
-		    sc->extra_stats.changeOfFrameAlignmentCount +=
-			    (regVal & T1FRAMER_COFA_MASK) >> 2;
-		    sc->extra_stats.severelyErroredFrameCount +=
-			    regVal & T1FRAMER_SEF_MASK;
-	    }
-	    spin_unlock_irqrestore(&sc->lmc_lock, flags);
-	    if (copy_to_user(data, &sc->lmc_device->stats,
-			     sizeof(sc->lmc_device->stats)) ||
-		copy_to_user(data + sizeof(sc->lmc_device->stats),
-			     &sc->extra_stats, sizeof(sc->extra_stats)))
-		    ret = -EFAULT;
-	    else
-		    ret = 0;
-	    break;
-
-    case LMCIOCCLEARLMCSTATS:
-	    if (!capable(CAP_NET_ADMIN)) {
-		    ret = -EPERM;
-		    break;
-	    }
-
-	    spin_lock_irqsave(&sc->lmc_lock, flags);
-	    memset(&sc->lmc_device->stats, 0, sizeof(sc->lmc_device->stats));
-	    memset(&sc->extra_stats, 0, sizeof(sc->extra_stats));
-	    sc->extra_stats.check = STATCHECK;
-	    sc->extra_stats.version_size = (DRIVER_VERSION << 16) +
-		    sizeof(sc->lmc_device->stats) + sizeof(sc->extra_stats);
-	    sc->extra_stats.lmc_cardtype = sc->lmc_cardtype;
-	    spin_unlock_irqrestore(&sc->lmc_lock, flags);
-	    ret = 0;
-	    break;
-
-    case LMCIOCSETCIRCUIT: /*fold01*/
-        if (!capable(CAP_NET_ADMIN)){
-            ret = -EPERM;
-            break;
-        }
-
-        if(dev->flags & IFF_UP){
-            ret = -EBUSY;
-            break;
-        }
-
-	if (copy_from_user(&ctl, data, sizeof(lmc_ctl_t))) {
-		ret = -EFAULT;
-		break;
-	}
-	spin_lock_irqsave(&sc->lmc_lock, flags);
-        sc->lmc_media->set_circuit_type(sc, ctl.circuit_type);
-        sc->ictl.circuit_type = ctl.circuit_type;
-	spin_unlock_irqrestore(&sc->lmc_lock, flags);
-        ret = 0;
-
-        break;
-
-    case LMCIOCRESET: /*fold01*/
-        if (!capable(CAP_NET_ADMIN)){
-            ret = -EPERM;
-            break;
-        }
-
-	spin_lock_irqsave(&sc->lmc_lock, flags);
-        /* Reset driver and bring back to current state */
-        printk (" REG16 before reset +%04x\n", lmc_mii_readreg (sc, 0, 16));
-        lmc_running_reset (dev);
-        printk (" REG16 after reset +%04x\n", lmc_mii_readreg (sc, 0, 16));
-
-        LMC_EVENT_LOG(LMC_EVENT_FORCEDRESET, LMC_CSR_READ (sc, csr_status), lmc_mii_readreg (sc, 0, 16));
-	spin_unlock_irqrestore(&sc->lmc_lock, flags);
-
-        ret = 0;
-        break;
-
-#ifdef DEBUG
-    case LMCIOCDUMPEVENTLOG:
-	if (copy_to_user(data, &lmcEventLogIndex, sizeof(u32))) {
-		ret = -EFAULT;
-		break;
-	}
-	if (copy_to_user(data + sizeof(u32), lmcEventLogBuf,
-			 sizeof(lmcEventLogBuf)))
-		ret = -EFAULT;
-	else
-		ret = 0;
-
-        break;
-#endif /* end ifdef _DBG_EVENTLOG */
-    case LMCIOCT1CONTROL: /*fold01*/
-        if (sc->lmc_cardtype != LMC_CARDTYPE_T1){
-            ret = -EOPNOTSUPP;
-            break;
-        }
-        break;
-    case LMCIOCXILINX: /*fold01*/
-        {
-            struct lmc_xilinx_control xc; /*fold02*/
-
-            if (!capable(CAP_NET_ADMIN)){
-                ret = -EPERM;
-                break;
-            }
-
-            /*
-             * Stop the xwitter whlie we restart the hardware
-             */
-            netif_stop_queue(dev);
-
-	    if (copy_from_user(&xc, data, sizeof(struct lmc_xilinx_control))) {
-		ret = -EFAULT;
-		break;
-	    }
-            switch(xc.command){
-            case lmc_xilinx_reset: /*fold02*/
-                {
-		    spin_lock_irqsave(&sc->lmc_lock, flags);
-                    lmc_mii_readreg (sc, 0, 16);
-
-                    /*
-                     * Make all of them 0 and make input
-                     */
-                    lmc_gpio_mkinput(sc, 0xff);
-
-                    /*
-                     * make the reset output
-                     */
-                    lmc_gpio_mkoutput(sc, LMC_GEP_RESET);
-
-                    /*
-                     * RESET low to force configuration.  This also forces
-                     * the transmitter clock to be internal, but we expect to reset
-                     * that later anyway.
-                     */
-
-                    sc->lmc_gpio &= ~LMC_GEP_RESET;
-                    LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
-
-
-                    /*
-                     * hold for more than 10 microseconds
-                     */
-                    udelay(50);
-
-                    sc->lmc_gpio |= LMC_GEP_RESET;
-                    LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
-
-
-                    /*
-                     * stop driving Xilinx-related signals
-                     */
-                    lmc_gpio_mkinput(sc, 0xff);
-
-                    /* Reset the frammer hardware */
-                    sc->lmc_media->set_link_status (sc, 1);
-                    sc->lmc_media->set_status (sc, NULL);
-//                    lmc_softreset(sc);
-
-                    {
-                        int i;
-                        for(i = 0; i < 5; i++){
-                            lmc_led_on(sc, LMC_DS3_LED0);
-                            mdelay(100);
-                            lmc_led_off(sc, LMC_DS3_LED0);
-                            lmc_led_on(sc, LMC_DS3_LED1);
-                            mdelay(100);
-                            lmc_led_off(sc, LMC_DS3_LED1);
-                            lmc_led_on(sc, LMC_DS3_LED3);
-                            mdelay(100);
-                            lmc_led_off(sc, LMC_DS3_LED3);
-                            lmc_led_on(sc, LMC_DS3_LED2);
-                            mdelay(100);
-                            lmc_led_off(sc, LMC_DS3_LED2);
-                        }
-                    }
-		    spin_unlock_irqrestore(&sc->lmc_lock, flags);
-                    
-                    
-
-                    ret = 0x0;
-
-                }
-
-                break;
-            case lmc_xilinx_load_prom: /*fold02*/
-                {
-                    int timeout = 500000;
-		    spin_lock_irqsave(&sc->lmc_lock, flags);
-                    lmc_mii_readreg (sc, 0, 16);
-
-                    /*
-                     * Make all of them 0 and make input
-                     */
-                    lmc_gpio_mkinput(sc, 0xff);
-
-                    /*
-                     * make the reset output
-                     */
-                    lmc_gpio_mkoutput(sc,  LMC_GEP_DP | LMC_GEP_RESET);
-
-                    /*
-                     * RESET low to force configuration.  This also forces
-                     * the transmitter clock to be internal, but we expect to reset
-                     * that later anyway.
-                     */
-
-                    sc->lmc_gpio &= ~(LMC_GEP_RESET | LMC_GEP_DP);
-                    LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
-
-
-                    /*
-                     * hold for more than 10 microseconds
-                     */
-                    udelay(50);
-
-                    sc->lmc_gpio |= LMC_GEP_DP | LMC_GEP_RESET;
-                    LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
-
-                    /*
-                     * busy wait for the chip to reset
-                     */
-                    while( (LMC_CSR_READ(sc, csr_gp) & LMC_GEP_INIT) == 0 &&
-                           (timeout-- > 0))
-                        cpu_relax();
-
-
-                    /*
-                     * stop driving Xilinx-related signals
-                     */
-                    lmc_gpio_mkinput(sc, 0xff);
-		    spin_unlock_irqrestore(&sc->lmc_lock, flags);
-
-                    ret = 0x0;
-                    
-
-                    break;
-
-                }
-
-            case lmc_xilinx_load: /*fold02*/
-                {
-                    char *data;
-                    int pos;
-                    int timeout = 500000;
-
-                    if (!xc.data) {
-                            ret = -EINVAL;
-                            break;
-                    }
-
-                    data = memdup_user(xc.data, xc.len);
-                    if (IS_ERR(data)) {
-                            ret = PTR_ERR(data);
-                            break;
-                    }
-
-                    printk("%s: Starting load of data Len: %d at 0x%p == 0x%p\n", dev->name, xc.len, xc.data, data);
-
-		    spin_lock_irqsave(&sc->lmc_lock, flags);
-                    lmc_gpio_mkinput(sc, 0xff);
-
-                    /*
-                     * Clear the Xilinx and start prgramming from the DEC
-                     */
-
-                    /*
-                     * Set ouput as:
-                     * Reset: 0 (active)
-                     * DP:    0 (active)
-                     * Mode:  1
-                     *
-                     */
-                    sc->lmc_gpio = 0x00;
-                    sc->lmc_gpio &= ~LMC_GEP_DP;
-                    sc->lmc_gpio &= ~LMC_GEP_RESET;
-                    sc->lmc_gpio |=  LMC_GEP_MODE;
-                    LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
-
-                    lmc_gpio_mkoutput(sc, LMC_GEP_MODE | LMC_GEP_DP | LMC_GEP_RESET);
-
-                    /*
-                     * Wait at least 10 us 20 to be safe
-                     */
-                    udelay(50);
-
-                    /*
-                     * Clear reset and activate programming lines
-                     * Reset: Input
-                     * DP:    Input
-                     * Clock: Output
-                     * Data:  Output
-                     * Mode:  Output
-                     */
-                    lmc_gpio_mkinput(sc, LMC_GEP_DP | LMC_GEP_RESET);
-
-                    /*
-                     * Set LOAD, DATA, Clock to 1
-                     */
-                    sc->lmc_gpio = 0x00;
-                    sc->lmc_gpio |= LMC_GEP_MODE;
-                    sc->lmc_gpio |= LMC_GEP_DATA;
-                    sc->lmc_gpio |= LMC_GEP_CLK;
-                    LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
-                    
-                    lmc_gpio_mkoutput(sc, LMC_GEP_DATA | LMC_GEP_CLK | LMC_GEP_MODE );
-
-                    /*
-                     * busy wait for the chip to reset
-                     */
-                    while( (LMC_CSR_READ(sc, csr_gp) & LMC_GEP_INIT) == 0 &&
-                           (timeout-- > 0))
-                        cpu_relax();
-
-                    printk(KERN_DEBUG "%s: Waited %d for the Xilinx to clear its memory\n", dev->name, 500000-timeout);
-
-                    for(pos = 0; pos < xc.len; pos++){
-                        switch(data[pos]){
-                        case 0:
-                            sc->lmc_gpio &= ~LMC_GEP_DATA; /* Data is 0 */
-                            break;
-                        case 1:
-                            sc->lmc_gpio |= LMC_GEP_DATA; /* Data is 1 */
-                            break;
-                        default:
-                            printk(KERN_WARNING "%s Bad data in xilinx programming data at %d, got %d wanted 0 or 1\n", dev->name, pos, data[pos]);
-                            sc->lmc_gpio |= LMC_GEP_DATA; /* Assume it's 1 */
-                        }
-                        sc->lmc_gpio &= ~LMC_GEP_CLK; /* Clock to zero */
-                        sc->lmc_gpio |= LMC_GEP_MODE;
-                        LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
-                        udelay(1);
-                        
-                        sc->lmc_gpio |= LMC_GEP_CLK; /* Put the clack back to one */
-                        sc->lmc_gpio |= LMC_GEP_MODE;
-                        LMC_CSR_WRITE(sc, csr_gp, sc->lmc_gpio);
-                        udelay(1);
-                    }
-                    if((LMC_CSR_READ(sc, csr_gp) & LMC_GEP_INIT) == 0){
-                        printk(KERN_WARNING "%s: Reprogramming FAILED. Needs to be reprogrammed. (corrupted data)\n", dev->name);
-                    }
-                    else if((LMC_CSR_READ(sc, csr_gp) & LMC_GEP_DP) == 0){
-                        printk(KERN_WARNING "%s: Reprogramming FAILED. Needs to be reprogrammed. (done)\n", dev->name);
-                    }
-                    else {
-                        printk(KERN_DEBUG "%s: Done reprogramming Xilinx, %d bits, good luck!\n", dev->name, pos);
-                    }
-
-                    lmc_gpio_mkinput(sc, 0xff);
-                    
-                    sc->lmc_miireg16 |= LMC_MII16_FIFO_RESET;
-                    lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
-
-                    sc->lmc_miireg16 &= ~LMC_MII16_FIFO_RESET;
-                    lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
-		    spin_unlock_irqrestore(&sc->lmc_lock, flags);
-
-                    kfree(data);
-                    
-                    ret = 0;
-                    
-                    break;
-                }
-            default: /*fold02*/
-                ret = -EBADE;
-                break;
-            }
-
-            netif_wake_queue(dev);
-            sc->lmc_txfull = 0;
-
-        }
-        break;
-    default:
-	break;
-    }
-
-    return ret;
-}
-
-
-/* the watchdog process that cruises around */
-static void lmc_watchdog(struct timer_list *t) /*fold00*/
-{
-    lmc_softc_t *sc = from_timer(sc, t, timer);
-    struct net_device *dev = sc->lmc_device;
-    int link_status;
-    u32 ticks;
-    unsigned long flags;
-
-    spin_lock_irqsave(&sc->lmc_lock, flags);
-
-    if(sc->check != 0xBEAFCAFE){
-        printk("LMC: Corrupt net_device struct, breaking out\n");
-	spin_unlock_irqrestore(&sc->lmc_lock, flags);
-        return;
-    }
-
-
-    /* Make sure the tx jabber and rx watchdog are off,
-     * and the transmit and receive processes are running.
-     */
-
-    LMC_CSR_WRITE (sc, csr_15, 0x00000011);
-    sc->lmc_cmdmode |= TULIP_CMD_TXRUN | TULIP_CMD_RXRUN;
-    LMC_CSR_WRITE (sc, csr_command, sc->lmc_cmdmode);
-
-    if (sc->lmc_ok == 0)
-        goto kick_timer;
-
-    LMC_EVENT_LOG(LMC_EVENT_WATCHDOG, LMC_CSR_READ (sc, csr_status), lmc_mii_readreg (sc, 0, 16));
-
-    /* --- begin time out check -----------------------------------
-     * check for a transmit interrupt timeout
-     * Has the packet xmt vs xmt serviced threshold been exceeded */
-    if (sc->lmc_taint_tx == sc->lastlmc_taint_tx &&
-	sc->lmc_device->stats.tx_packets > sc->lasttx_packets &&
-	sc->tx_TimeoutInd == 0)
-    {
-
-        /* wait for the watchdog to come around again */
-        sc->tx_TimeoutInd = 1;
-    }
-    else if (sc->lmc_taint_tx == sc->lastlmc_taint_tx &&
-	     sc->lmc_device->stats.tx_packets > sc->lasttx_packets &&
-	     sc->tx_TimeoutInd)
-    {
-
-        LMC_EVENT_LOG(LMC_EVENT_XMTINTTMO, LMC_CSR_READ (sc, csr_status), 0);
-
-        sc->tx_TimeoutDisplay = 1;
-	sc->extra_stats.tx_TimeoutCnt++;
-
-        /* DEC chip is stuck, hit it with a RESET!!!! */
-        lmc_running_reset (dev);
-
-
-        /* look at receive & transmit process state to make sure they are running */
-        LMC_EVENT_LOG(LMC_EVENT_RESET1, LMC_CSR_READ (sc, csr_status), 0);
-
-        /* look at: DSR - 02  for Reg 16
-         *                  CTS - 08
-         *                  DCD - 10
-         *                  RI  - 20
-         * for Reg 17
-         */
-        LMC_EVENT_LOG(LMC_EVENT_RESET2, lmc_mii_readreg (sc, 0, 16), lmc_mii_readreg (sc, 0, 17));
-
-        /* reset the transmit timeout detection flag */
-        sc->tx_TimeoutInd = 0;
-        sc->lastlmc_taint_tx = sc->lmc_taint_tx;
-	sc->lasttx_packets = sc->lmc_device->stats.tx_packets;
-    } else {
-        sc->tx_TimeoutInd = 0;
-        sc->lastlmc_taint_tx = sc->lmc_taint_tx;
-	sc->lasttx_packets = sc->lmc_device->stats.tx_packets;
-    }
-
-    /* --- end time out check ----------------------------------- */
-
-
-    link_status = sc->lmc_media->get_link_status (sc);
-
-    /*
-     * hardware level link lost, but the interface is marked as up.
-     * Mark it as down.
-     */
-    if ((link_status == 0) && (sc->last_link_status != 0)) {
-        printk(KERN_WARNING "%s: hardware/physical link down\n", dev->name);
-        sc->last_link_status = 0;
-        /* lmc_reset (sc); Why reset??? The link can go down ok */
-
-        /* Inform the world that link has been lost */
-	netif_carrier_off(dev);
-    }
-
-    /*
-     * hardware link is up, but the interface is marked as down.
-     * Bring it back up again.
-     */
-     if (link_status != 0 && sc->last_link_status == 0) {
-         printk(KERN_WARNING "%s: hardware/physical link up\n", dev->name);
-         sc->last_link_status = 1;
-         /* lmc_reset (sc); Again why reset??? */
-
-	 netif_carrier_on(dev);
-     }
-
-    /* Call media specific watchdog functions */
-    sc->lmc_media->watchdog(sc);
-
-    /*
-     * Poke the transmitter to make sure it
-     * never stops, even if we run out of mem
-     */
-    LMC_CSR_WRITE(sc, csr_rxpoll, 0);
-
-    /*
-     * Check for code that failed
-     * and try and fix it as appropriate
-     */
-    if(sc->failed_ring == 1){
-        /*
-         * Failed to setup the recv/xmit rin
-         * Try again
-         */
-        sc->failed_ring = 0;
-        lmc_softreset(sc);
-    }
-    if(sc->failed_recv_alloc == 1){
-        /*
-         * We failed to alloc mem in the
-         * interrupt handler, go through the rings
-         * and rebuild them
-         */
-        sc->failed_recv_alloc = 0;
-        lmc_softreset(sc);
-    }
-
-
-    /*
-     * remember the timer value
-     */
-kick_timer:
-
-    ticks = LMC_CSR_READ (sc, csr_gp_timer);
-    LMC_CSR_WRITE (sc, csr_gp_timer, 0xffffffffUL);
-    sc->ictl.ticks = 0x0000ffff - (ticks & 0x0000ffff);
-
-    /*
-     * restart this timer.
-     */
-    sc->timer.expires = jiffies + (HZ);
-    add_timer (&sc->timer);
-
-    spin_unlock_irqrestore(&sc->lmc_lock, flags);
-}
-
-static int lmc_attach(struct net_device *dev, unsigned short encoding,
-		      unsigned short parity)
-{
-	if (encoding == ENCODING_NRZ && parity == PARITY_CRC16_PR1_CCITT)
-		return 0;
-	return -EINVAL;
-}
-
-static const struct net_device_ops lmc_ops = {
-	.ndo_open       = lmc_open,
-	.ndo_stop       = lmc_close,
-	.ndo_start_xmit = hdlc_start_xmit,
-	.ndo_siocwandev = hdlc_ioctl,
-	.ndo_siocdevprivate = lmc_siocdevprivate,
-	.ndo_tx_timeout = lmc_driver_timeout,
-	.ndo_get_stats  = lmc_get_stats,
-};
-
-static int lmc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-	lmc_softc_t *sc;
-	struct net_device *dev;
-	u16 subdevice;
-	u16 AdapModelNum;
-	int err;
-	static int cards_found;
-
-	err = pcim_enable_device(pdev);
-	if (err) {
-		printk(KERN_ERR "lmc: pci enable failed: %d\n", err);
-		return err;
-	}
-
-	err = pci_request_regions(pdev, "lmc");
-	if (err) {
-		printk(KERN_ERR "lmc: pci_request_region failed\n");
-		return err;
-	}
-
-	/*
-	 * Allocate our own device structure
-	 */
-	sc = devm_kzalloc(&pdev->dev, sizeof(lmc_softc_t), GFP_KERNEL);
-	if (!sc)
-		return -ENOMEM;
-
-	dev = alloc_hdlcdev(sc);
-	if (!dev) {
-		printk(KERN_ERR "lmc:alloc_netdev for device failed\n");
-		return -ENOMEM;
-	}
-
-
-	dev->type = ARPHRD_HDLC;
-	dev_to_hdlc(dev)->xmit = lmc_start_xmit;
-	dev_to_hdlc(dev)->attach = lmc_attach;
-	dev->netdev_ops = &lmc_ops;
-	dev->watchdog_timeo = HZ; /* 1 second */
-	dev->tx_queue_len = 100;
-	sc->lmc_device = dev;
-	sc->name = dev->name;
-	sc->if_type = LMC_PPP;
-	sc->check = 0xBEAFCAFE;
-	dev->base_addr = pci_resource_start(pdev, 0);
-	dev->irq = pdev->irq;
-	pci_set_drvdata(pdev, dev);
-	SET_NETDEV_DEV(dev, &pdev->dev);
-
-	/*
-	 * This will get the protocol layer ready and do any 1 time init's
-	 * Must have a valid sc and dev structure
-	 */
-	lmc_proto_attach(sc);
-
-	/* Init the spin lock so can call it latter */
-
-	spin_lock_init(&sc->lmc_lock);
-	pci_set_master(pdev);
-
-	printk(KERN_INFO "hdlc: detected at %lx, irq %d\n",
-	       dev->base_addr, dev->irq);
-
-	err = register_hdlc_device(dev);
-	if (err) {
-		printk(KERN_ERR "%s: register_netdev failed.\n", dev->name);
-		free_netdev(dev);
-		return err;
-	}
-
-    sc->lmc_cardtype = LMC_CARDTYPE_UNKNOWN;
-    sc->lmc_timing = LMC_CTL_CLOCK_SOURCE_EXT;
-
-    /*
-     *
-     * Check either the subvendor or the subdevice, some systems reverse
-     * the setting in the bois, seems to be version and arch dependent?
-     * Fix the error, exchange the two values 
-     */
-    if ((subdevice = pdev->subsystem_device) == PCI_VENDOR_ID_LMC)
-	    subdevice = pdev->subsystem_vendor;
-
-    switch (subdevice) {
-    case PCI_DEVICE_ID_LMC_HSSI:
-	printk(KERN_INFO "%s: LMC HSSI\n", dev->name);
-        sc->lmc_cardtype = LMC_CARDTYPE_HSSI;
-        sc->lmc_media = &lmc_hssi_media;
-        break;
-    case PCI_DEVICE_ID_LMC_DS3:
-	printk(KERN_INFO "%s: LMC DS3\n", dev->name);
-        sc->lmc_cardtype = LMC_CARDTYPE_DS3;
-        sc->lmc_media = &lmc_ds3_media;
-        break;
-    case PCI_DEVICE_ID_LMC_SSI:
-	printk(KERN_INFO "%s: LMC SSI\n", dev->name);
-        sc->lmc_cardtype = LMC_CARDTYPE_SSI;
-        sc->lmc_media = &lmc_ssi_media;
-        break;
-    case PCI_DEVICE_ID_LMC_T1:
-	printk(KERN_INFO "%s: LMC T1\n", dev->name);
-        sc->lmc_cardtype = LMC_CARDTYPE_T1;
-        sc->lmc_media = &lmc_t1_media;
-        break;
-    default:
-	printk(KERN_WARNING "%s: LMC UNKNOWN CARD!\n", dev->name);
-	unregister_hdlc_device(dev);
-	return -EIO;
-        break;
-    }
-
-    lmc_initcsrs (sc, dev->base_addr, 8);
-
-    lmc_gpio_mkinput (sc, 0xff);
-    sc->lmc_gpio = 0;		/* drive no signals yet */
-
-    sc->lmc_media->defaults (sc);
-
-    sc->lmc_media->set_link_status (sc, LMC_LINK_UP);
-
-    /* verify that the PCI Sub System ID matches the Adapter Model number
-     * from the MII register
-     */
-    AdapModelNum = (lmc_mii_readreg (sc, 0, 3) & 0x3f0) >> 4;
-
-    if ((AdapModelNum != LMC_ADAP_T1 || /* detect LMC1200 */
-	 subdevice != PCI_DEVICE_ID_LMC_T1) &&
-	(AdapModelNum != LMC_ADAP_SSI || /* detect LMC1000 */
-	 subdevice != PCI_DEVICE_ID_LMC_SSI) &&
-	(AdapModelNum != LMC_ADAP_DS3 || /* detect LMC5245 */
-	 subdevice != PCI_DEVICE_ID_LMC_DS3) &&
-	(AdapModelNum != LMC_ADAP_HSSI || /* detect LMC5200 */
-	 subdevice != PCI_DEVICE_ID_LMC_HSSI))
-	    printk(KERN_WARNING "%s: Model number (%d) miscompare for PCI"
-		   " Subsystem ID = 0x%04x\n",
-		   dev->name, AdapModelNum, subdevice);
-
-    /*
-     * reset clock
-     */
-    LMC_CSR_WRITE (sc, csr_gp_timer, 0xFFFFFFFFUL);
-
-    sc->board_idx = cards_found++;
-    sc->extra_stats.check = STATCHECK;
-    sc->extra_stats.version_size = (DRIVER_VERSION << 16) +
-	    sizeof(sc->lmc_device->stats) + sizeof(sc->extra_stats);
-    sc->extra_stats.lmc_cardtype = sc->lmc_cardtype;
-
-    sc->lmc_ok = 0;
-    sc->last_link_status = 0;
-
-    return 0;
-}
-
-/*
- * Called from pci when removing module.
- */
-static void lmc_remove_one(struct pci_dev *pdev)
-{
-	struct net_device *dev = pci_get_drvdata(pdev);
-
-	if (dev) {
-		printk(KERN_DEBUG "%s: removing...\n", dev->name);
-		unregister_hdlc_device(dev);
-		free_netdev(dev);
-	}
-}
-
-/* After this is called, packets can be sent.
- * Does not initialize the addresses
- */
-static int lmc_open(struct net_device *dev)
-{
-    lmc_softc_t *sc = dev_to_sc(dev);
-    int err;
-
-    lmc_led_on(sc, LMC_DS3_LED0);
-
-    lmc_dec_reset(sc);
-    lmc_reset(sc);
-
-    LMC_EVENT_LOG(LMC_EVENT_RESET1, LMC_CSR_READ(sc, csr_status), 0);
-    LMC_EVENT_LOG(LMC_EVENT_RESET2, lmc_mii_readreg(sc, 0, 16),
-		  lmc_mii_readreg(sc, 0, 17));
-
-    if (sc->lmc_ok)
-        return 0;
-
-    lmc_softreset (sc);
-
-    /* Since we have to use PCI bus, this should work on x86,alpha,ppc */
-    if (request_irq (dev->irq, lmc_interrupt, IRQF_SHARED, dev->name, dev)){
-        printk(KERN_WARNING "%s: could not get irq: %d\n", dev->name, dev->irq);
-        return -EAGAIN;
-    }
-    sc->got_irq = 1;
-
-    /* Assert Terminal Active */
-    sc->lmc_miireg16 |= LMC_MII16_LED_ALL;
-    sc->lmc_media->set_link_status (sc, LMC_LINK_UP);
-
-    /*
-     * reset to last state.
-     */
-    sc->lmc_media->set_status (sc, NULL);
-
-    /* setup default bits to be used in tulip_desc_t transmit descriptor
-     * -baz */
-    sc->TxDescriptControlInit = (
-                                 LMC_TDES_INTERRUPT_ON_COMPLETION
-                                 | LMC_TDES_FIRST_SEGMENT
-                                 | LMC_TDES_LAST_SEGMENT