text: /*
   * 7990.c -- LANCE ethernet IC generic routines.
   * This is an attempt to separate out the bits of various ethernet
   * drivers that are common because they all use the AMD 7990 LANCE
   * (Local Area Network Controller for Ethernet) chip.
   *
   * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
   *
   * Most of this stuff was obtained by looking at other LANCE drivers,
   * in particular a2065.[ch]. The AMD C-LANCE datasheet was also helpful.
   * NB: this was made easy by the fact that Jes Sorensen had cleaned up
   * most of a2025 and sunlance with the aim of merging them, so the
   * common code was pretty obvious.
   */
  #include <linux/crc32.h>
  #include <linux/delay.h>
  #include <linux/errno.h>
  #include <linux/netdevice.h>
  #include <linux/etherdevice.h>
  #include <linux/module.h>
  #include <linux/kernel.h>
  #include <linux/types.h>
  #include <linux/fcntl.h>
  #include <linux/interrupt.h>
  #include <linux/ioport.h>
  #include <linux/in.h>
  #include <linux/route.h>
  #include <linux/string.h>
  #include <linux/skbuff.h>
  #include <asm/irq.h>
  /* Used for the temporal inet entries and routing */
  #include <linux/socket.h>
  #include <linux/bitops.h>
  
  #include <asm/io.h>
  #include <asm/dma.h>
  #include <asm/pgtable.h>
  #ifdef CONFIG_HP300
  #include <asm/blinken.h>
  #endif
  
  #include "7990.h"
  
  #define WRITERAP(lp, x)	out_be16(lp->base + LANCE_RAP, (x))
  #define WRITERDP(lp, x)	out_be16(lp->base + LANCE_RDP, (x))
  #define READRDP(lp)	in_be16(lp->base + LANCE_RDP)
  
  #if defined(CONFIG_HPLANCE) || defined(CONFIG_HPLANCE_MODULE)
  #include "hplance.h"
  
  #undef WRITERAP
  #undef WRITERDP
  #undef READRDP
  
  #if defined(CONFIG_MVME147_NET) || defined(CONFIG_MVME147_NET_MODULE)
  
  /* Lossage Factor Nine, Mr Sulu. */
  #define WRITERAP(lp, x)	(lp->writerap(lp, x))
  #define WRITERDP(lp, x)	(lp->writerdp(lp, x))
  #define READRDP(lp)	(lp->readrdp(lp))
  
  #else
  
  /* These inlines can be used if only CONFIG_HPLANCE is defined */
  static inline void WRITERAP(struct lance_private *lp, __u16 value)
  {
  	do {
  		out_be16(lp->base + HPLANCE_REGOFF + LANCE_RAP, value);
  	} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
  }
  
  static inline void WRITERDP(struct lance_private *lp, __u16 value)
  {
  	do {
  		out_be16(lp->base + HPLANCE_REGOFF + LANCE_RDP, value);
  	} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
  }
  
  static inline __u16 READRDP(struct lance_private *lp)
  {
  	__u16 value;
  	do {
  		value = in_be16(lp->base + HPLANCE_REGOFF + LANCE_RDP);
  	} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
  	return value;
  }
  
  #endif
  #endif /* CONFIG_HPLANCE || CONFIG_HPLANCE_MODULE */
  
  /* debugging output macros, various flavours */
  /* #define TEST_HITS */
  #ifdef UNDEF
  #define PRINT_RINGS() \
  do { \
  	int t; \
  	for (t = 0; t < RX_RING_SIZE; t++) { \
  		printk("R%d: @(%02X %04X) len %04X, mblen %04X, bits %02X\n", \
  		       t, ib->brx_ring[t].rmd1_hadr, ib->brx_ring[t].rmd0, \
  		       ib->brx_ring[t].length, \
  		       ib->brx_ring[t].mblength, ib->brx_ring[t].rmd1_bits); \
  	} \
  	for (t = 0; t < TX_RING_SIZE; t++) { \
  		printk("T%d: @(%02X %04X) len %04X, misc %04X, bits %02X\n", \
  		       t, ib->btx_ring[t].tmd1_hadr, ib->btx_ring[t].tmd0, \
  		       ib->btx_ring[t].length, \
  		       ib->btx_ring[t].misc, ib->btx_ring[t].tmd1_bits); \
  	} \
  } while (0)
  #else
  #define PRINT_RINGS()
  #endif
  
  /* Load the CSR registers. The LANCE has to be STOPped when we do this! */
  static void load_csrs(struct lance_private *lp)
  {
  	volatile struct lance_init_block *aib = lp->lance_init_block;
  	int leptr;
  
  	leptr = LANCE_ADDR(aib);
  
  	WRITERAP(lp, LE_CSR1);                    /* load address of init block */
  	WRITERDP(lp, leptr & 0xFFFF);
  	WRITERAP(lp, LE_CSR2);
  	WRITERDP(lp, leptr >> 16);
  	WRITERAP(lp, LE_CSR3);
  	WRITERDP(lp, lp->busmaster_regval);       /* set byteswap/ALEctrl/byte ctrl */
  
  	/* Point back to csr0 */
  	WRITERAP(lp, LE_CSR0);
  }
  
  /* #define to 0 or 1 appropriately */
  #define DEBUG_IRING 0
  /* Set up the Lance Rx and Tx rings and the init block */
  static void lance_init_ring(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  	volatile struct lance_init_block *ib = lp->init_block;
  	volatile struct lance_init_block *aib; /* for LANCE_ADDR computations */
  	int leptr;
  	int i;
  
  	aib = lp->lance_init_block;
  
  	lp->rx_new = lp->tx_new = 0;
  	lp->rx_old = lp->tx_old = 0;
  
  	ib->mode = LE_MO_PROM;                             /* normal, enable Tx & Rx */
  
  	/* Copy the ethernet address to the lance init block
  	 * Notice that we do a byteswap if we're big endian.
  	 * [I think this is the right criterion; at least, sunlance,
  	 * a2065 and atarilance do the byteswap and lance.c (PC) doesn't.
  	 * However, the datasheet says that the BSWAP bit doesn't affect
  	 * the init block, so surely it should be low byte first for
  	 * everybody? Um.]
  	 * We could define the ib->physaddr as three 16bit values and
  	 * use (addr[1] << 8) | addr[0] & co, but this is more efficient.
  	 */
  #ifdef __BIG_ENDIAN
  	ib->phys_addr[0] = dev->dev_addr[1];
  	ib->phys_addr[1] = dev->dev_addr[0];
  	ib->phys_addr[2] = dev->dev_addr[3];
  	ib->phys_addr[3] = dev->dev_addr[2];
  	ib->phys_addr[4] = dev->dev_addr[5];
  	ib->phys_addr[5] = dev->dev_addr[4];
  #else
  	for (i = 0; i < 6; i++)
  	       ib->phys_addr[i] = dev->dev_addr[i];
  #endif
  
  	if (DEBUG_IRING)
  		printk("TX rings:\n");
  
  	lp->tx_full = 0;
  	/* Setup the Tx ring entries */
  	for (i = 0; i < (1 << lp->lance_log_tx_bufs); i++) {
  		leptr = LANCE_ADDR(&aib->tx_buf[i][0]);
  		ib->btx_ring[i].tmd0      = leptr;
  		ib->btx_ring[i].tmd1_hadr = leptr >> 16;
  		ib->btx_ring[i].tmd1_bits = 0;
  		ib->btx_ring[i].length    = 0xf000; /* The ones required by tmd2 */
  		ib->btx_ring[i].misc      = 0;
  		if (DEBUG_IRING)
  			printk("%d: 0x%8.8x\n", i, leptr);
  	}
  
  	/* Setup the Rx ring entries */
  	if (DEBUG_IRING)
  		printk("RX rings:\n");
  	for (i = 0; i < (1 << lp->lance_log_rx_bufs); i++) {
  		leptr = LANCE_ADDR(&aib->rx_buf[i][0]);
  
  		ib->brx_ring[i].rmd0      = leptr;
  		ib->brx_ring[i].rmd1_hadr = leptr >> 16;
  		ib->brx_ring[i].rmd1_bits = LE_R1_OWN;
  		/* 0xf000 == bits that must be one (reserved, presumably) */
  		ib->brx_ring[i].length    = -RX_BUFF_SIZE | 0xf000;
  		ib->brx_ring[i].mblength  = 0;
  		if (DEBUG_IRING)
  			printk("%d: 0x%8.8x\n", i, leptr);
  	}
  
  	/* Setup the initialization block */
  
  	/* Setup rx descriptor pointer */
  	leptr = LANCE_ADDR(&aib->brx_ring);
  	ib->rx_len = (lp->lance_log_rx_bufs << 13) | (leptr >> 16);
  	ib->rx_ptr = leptr;
  	if (DEBUG_IRING)
  		printk("RX ptr: %8.8x\n", leptr);
  
  	/* Setup tx descriptor pointer */
  	leptr = LANCE_ADDR(&aib->btx_ring);
  	ib->tx_len = (lp->lance_log_tx_bufs << 13) | (leptr >> 16);
  	ib->tx_ptr = leptr;
  	if (DEBUG_IRING)
  		printk("TX ptr: %8.8x\n", leptr);
  
  	/* Clear the multicast filter */
  	ib->filter[0] = 0;
  	ib->filter[1] = 0;
  	PRINT_RINGS();
  }
  
  /* LANCE must be STOPped before we do this, too... */
  static int init_restart_lance(struct lance_private *lp)
  {
  	int i;
  
  	WRITERAP(lp, LE_CSR0);
  	WRITERDP(lp, LE_C0_INIT);
  
  	/* Need a hook here for sunlance ledma stuff */
  
  	/* Wait for the lance to complete initialization */
  	for (i = 0; (i < 100) && !(READRDP(lp) & (LE_C0_ERR | LE_C0_IDON)); i++)
  		barrier();
  	if ((i == 100) || (READRDP(lp) & LE_C0_ERR)) {
  		printk("LANCE unopened after %d ticks, csr0=%4.4x.\n", i, READRDP(lp));
  		return -1;
  	}
  
  	/* Clear IDON by writing a "1", enable interrupts and start lance */
  	WRITERDP(lp, LE_C0_IDON);
  	WRITERDP(lp, LE_C0_INEA | LE_C0_STRT);
  
  	return 0;
  }
  
  static int lance_reset(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  	int status;
  
  	/* Stop the lance */
  	WRITERAP(lp, LE_CSR0);
  	WRITERDP(lp, LE_C0_STOP);
  
  	load_csrs(lp);
  	lance_init_ring(dev);
  	dev->trans_start = jiffies; /* prevent tx timeout */
  	status = init_restart_lance(lp);
  #ifdef DEBUG_DRIVER
  	printk("Lance restart=%d\n", status);
  #endif
  	return status;
  }
  
  static int lance_rx(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  	volatile struct lance_init_block *ib = lp->init_block;
  	volatile struct lance_rx_desc *rd;
  	unsigned char bits;
  #ifdef TEST_HITS
  	int i;
  #endif
  
  #ifdef TEST_HITS
  	printk("[");
  	for (i = 0; i < RX_RING_SIZE; i++) {
  		if (i == lp->rx_new)
  			printk("%s",
  			       ib->brx_ring[i].rmd1_bits & LE_R1_OWN ? "_" : "X");
  		else
  			printk("%s",
  			      ib->brx_ring[i].rmd1_bits & LE_R1_OWN ? "." : "1");
  	}
  	printk("]");
  #endif
  #ifdef CONFIG_HP300
  	blinken_leds(0x40, 0);
  #endif
  	WRITERDP(lp, LE_C0_RINT | LE_C0_INEA);     /* ack Rx int, reenable ints */
  	for (rd = &ib->brx_ring[lp->rx_new];     /* For each Rx ring we own... */
  	     !((bits = rd->rmd1_bits) & LE_R1_OWN);
  	     rd = &ib->brx_ring[lp->rx_new]) {
  
  		/* We got an incomplete frame? */
  		if ((bits & LE_R1_POK) != LE_R1_POK) {
  			dev->stats.rx_over_errors++;
  			dev->stats.rx_errors++;
  			continue;
  		} else if (bits & LE_R1_ERR) {
  			/* Count only the end frame as a rx error,
  			 * not the beginning
  			 */
  			if (bits & LE_R1_BUF)
  				dev->stats.rx_fifo_errors++;
  			if (bits & LE_R1_CRC)
  				dev->stats.rx_crc_errors++;
  			if (bits & LE_R1_OFL)
  				dev->stats.rx_over_errors++;
  			if (bits & LE_R1_FRA)
  				dev->stats.rx_frame_errors++;
  			if (bits & LE_R1_EOP)
  				dev->stats.rx_errors++;
  		} else {
  			int len = (rd->mblength & 0xfff) - 4;
  			struct sk_buff *skb = netdev_alloc_skb(dev, len + 2);
  
  			if (!skb) {
  				dev->stats.rx_dropped++;
  				rd->mblength = 0;
  				rd->rmd1_bits = LE_R1_OWN;
  				lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
  				return 0;
  			}
  
  			skb_reserve(skb, 2);           /* 16 byte align */
  			skb_put(skb, len);             /* make room */
  			skb_copy_to_linear_data(skb,
  					 (unsigned char *)&(ib->rx_buf[lp->rx_new][0]),
  					 len);
  			skb->protocol = eth_type_trans(skb, dev);
  			netif_rx(skb);
  			dev->stats.rx_packets++;
  			dev->stats.rx_bytes += len;
  		}
  
  		/* Return the packet to the pool */
  		rd->mblength = 0;
  		rd->rmd1_bits = LE_R1_OWN;
  		lp->rx_new = (lp->rx_new + 1) & lp->rx_ring_mod_mask;
  	}
  	return 0;
  }
  
  static int lance_tx(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  	volatile struct lance_init_block *ib = lp->init_block;
  	volatile struct lance_tx_desc *td;
  	int i, j;
  	int status;
  
  #ifdef CONFIG_HP300
  	blinken_leds(0x80, 0);
  #endif
  	/* csr0 is 2f3 */
  	WRITERDP(lp, LE_C0_TINT | LE_C0_INEA);
  	/* csr0 is 73 */
  
  	j = lp->tx_old;
  	for (i = j; i != lp->tx_new; i = j) {
  		td = &ib->btx_ring[i];
  
  		/* If we hit a packet not owned by us, stop */
  		if (td->tmd1_bits & LE_T1_OWN)
  			break;
  
  		if (td->tmd1_bits & LE_T1_ERR) {
  			status = td->misc;
  
  			dev->stats.tx_errors++;
  			if (status & LE_T3_RTY)
  				dev->stats.tx_aborted_errors++;
  			if (status & LE_T3_LCOL)
  				dev->stats.tx_window_errors++;
  
  			if (status & LE_T3_CLOS) {
  				dev->stats.tx_carrier_errors++;
  				if (lp->auto_select) {
  					lp->tpe = 1 - lp->tpe;
  					printk("%s: Carrier Lost, trying %s\n",
  					       dev->name,
  					       lp->tpe ? "TPE" : "AUI");
  					/* Stop the lance */
  					WRITERAP(lp, LE_CSR0);
  					WRITERDP(lp, LE_C0_STOP);
  					lance_init_ring(dev);
  					load_csrs(lp);
  					init_restart_lance(lp);
  					return 0;
  				}
  			}
  
  			/* buffer errors and underflows turn off the transmitter */
  			/* Restart the adapter */
  			if (status & (LE_T3_BUF|LE_T3_UFL)) {
  				dev->stats.tx_fifo_errors++;
  
  				printk("%s: Tx: ERR_BUF|ERR_UFL, restarting\n",
  				       dev->name);
  				/* Stop the lance */
  				WRITERAP(lp, LE_CSR0);
  				WRITERDP(lp, LE_C0_STOP);
  				lance_init_ring(dev);
  				load_csrs(lp);
  				init_restart_lance(lp);
  				return 0;
  			}
  		} else if ((td->tmd1_bits & LE_T1_POK) == LE_T1_POK) {
  			/*
  			 * So we don't count the packet more than once.
  			 */
  			td->tmd1_bits &= ~(LE_T1_POK);
  
  			/* One collision before packet was sent. */
  			if (td->tmd1_bits & LE_T1_EONE)
  				dev->stats.collisions++;
  
  			/* More than one collision, be optimistic. */
  			if (td->tmd1_bits & LE_T1_EMORE)
  				dev->stats.collisions += 2;
  
  			dev->stats.tx_packets++;
  		}
  
  		j = (j + 1) & lp->tx_ring_mod_mask;
  	}
  	lp->tx_old = j;
  	WRITERDP(lp, LE_C0_TINT | LE_C0_INEA);
  	return 0;
  }
  
  static irqreturn_t
  lance_interrupt(int irq, void *dev_id)
  {
  	struct net_device *dev = (struct net_device *)dev_id;
  	struct lance_private *lp = netdev_priv(dev);
  	int csr0;
  
  	spin_lock(&lp->devlock);
  
  	WRITERAP(lp, LE_CSR0);              /* LANCE Controller Status */
  	csr0 = READRDP(lp);
  
  	PRINT_RINGS();
  
  	if (!(csr0 & LE_C0_INTR)) {     /* Check if any interrupt has */
  		spin_unlock(&lp->devlock);
  		return IRQ_NONE;        /* been generated by the Lance. */
  	}
  
  	/* Acknowledge all the interrupt sources ASAP */
  	WRITERDP(lp, csr0 & ~(LE_C0_INEA|LE_C0_TDMD|LE_C0_STOP|LE_C0_STRT|LE_C0_INIT));
  
  	if ((csr0 & LE_C0_ERR)) {
  		/* Clear the error condition */
  		WRITERDP(lp, LE_C0_BABL|LE_C0_ERR|LE_C0_MISS|LE_C0_INEA);
  	}
  
  	if (csr0 & LE_C0_RINT)
  		lance_rx(dev);
  
  	if (csr0 & LE_C0_TINT)
  		lance_tx(dev);
  
  	/* Log misc errors. */
  	if (csr0 & LE_C0_BABL)
  		dev->stats.tx_errors++;       /* Tx babble. */
  	if (csr0 & LE_C0_MISS)
  		dev->stats.rx_errors++;       /* Missed a Rx frame. */
  	if (csr0 & LE_C0_MERR) {
  		printk("%s: Bus master arbitration failure, status %4.4x.\n",
  		       dev->name, csr0);
  		/* Restart the chip. */
  		WRITERDP(lp, LE_C0_STRT);
  	}
  
  	if (lp->tx_full && netif_queue_stopped(dev) && (TX_BUFFS_AVAIL >= 0)) {
  		lp->tx_full = 0;
  		netif_wake_queue(dev);
  	}
  
  	WRITERAP(lp, LE_CSR0);
  	WRITERDP(lp, LE_C0_BABL|LE_C0_CERR|LE_C0_MISS|LE_C0_MERR|LE_C0_IDON|LE_C0_INEA);
  
  	spin_unlock(&lp->devlock);
  	return IRQ_HANDLED;
  }
  
  int lance_open(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  	int res;
  
  	/* Install the Interrupt handler. Or we could shunt this out to specific drivers? */
  	if (request_irq(lp->irq, lance_interrupt, IRQF_SHARED, lp->name, dev))
  		return -EAGAIN;
  
  	res = lance_reset(dev);
  	spin_lock_init(&lp->devlock);
  	netif_start_queue(dev);
  
  	return res;
  }
  EXPORT_SYMBOL_GPL(lance_open);
  
  int lance_close(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  
  	netif_stop_queue(dev);
  
  	/* Stop the LANCE */
  	WRITERAP(lp, LE_CSR0);
  	WRITERDP(lp, LE_C0_STOP);
  
  	free_irq(lp->irq, dev);
  
  	return 0;
  }
  EXPORT_SYMBOL_GPL(lance_close);
  
  void lance_tx_timeout(struct net_device *dev)
  {
  	printk("lance_tx_timeout\n");
  	lance_reset(dev);
  	dev->trans_start = jiffies; /* prevent tx timeout */
  	netif_wake_queue(dev);
  }
  EXPORT_SYMBOL_GPL(lance_tx_timeout);
  
  int lance_start_xmit(struct sk_buff *skb, struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  	volatile struct lance_init_block *ib = lp->init_block;
  	int entry, skblen, len;
  	static int outs;
  	unsigned long flags;
  
  	if (!TX_BUFFS_AVAIL)
  		return NETDEV_TX_LOCKED;
  
  	netif_stop_queue(dev);
  
  	skblen = skb->len;
  
  #ifdef DEBUG_DRIVER
  	/* dump the packet */
  	{
  		int i;
  
  		for (i = 0; i < 64; i++) {
  			if ((i % 16) == 0)
  				printk("\n");
  			printk("%2.2x ", skb->data[i]);
  		}
  	}
  #endif
  	len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen;
  	entry = lp->tx_new & lp->tx_ring_mod_mask;
  	ib->btx_ring[entry].length = (-len) | 0xf000;
  	ib->btx_ring[entry].misc = 0;
  
  	if (skb->len < ETH_ZLEN)
  		memset((void *)&ib->tx_buf[entry][0], 0, ETH_ZLEN);
  	skb_copy_from_linear_data(skb, (void *)&ib->tx_buf[entry][0], skblen);
  
  	/* Now, give the packet to the lance */
  	ib->btx_ring[entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN);
  	lp->tx_new = (lp->tx_new + 1) & lp->tx_ring_mod_mask;
  
  	outs++;
  	/* Kick the lance: transmit now */
  	WRITERDP(lp, LE_C0_INEA | LE_C0_TDMD);
  	dev_consume_skb_any(skb);
  
  	spin_lock_irqsave(&lp->devlock, flags);
  	if (TX_BUFFS_AVAIL)
  		netif_start_queue(dev);
  	else
  		lp->tx_full = 1;
  	spin_unlock_irqrestore(&lp->devlock, flags);
  
  	return NETDEV_TX_OK;
  }
  EXPORT_SYMBOL_GPL(lance_start_xmit);
  
  /* taken from the depca driver via a2065.c */
  static void lance_load_multicast(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  	volatile struct lance_init_block *ib = lp->init_block;
  	volatile u16 *mcast_table = (u16 *)&ib->filter;
  	struct netdev_hw_addr *ha;
  	u32 crc;
  
  	/* set all multicast bits */
  	if (dev->flags & IFF_ALLMULTI) {
  		ib->filter[0] = 0xffffffff;
  		ib->filter[1] = 0xffffffff;
  		return;
  	}
  	/* clear the multicast filter */
  	ib->filter[0] = 0;
  	ib->filter[1] = 0;
  
  	/* Add addresses */
  	netdev_for_each_mc_addr(ha, dev) {
  		crc = ether_crc_le(6, ha->addr);
  		crc = crc >> 26;
  		mcast_table[crc >> 4] |= 1 << (crc & 0xf);
  	}
  }
  
  
  void lance_set_multicast(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  	volatile struct lance_init_block *ib = lp->init_block;
  	int stopped;
  
  	stopped = netif_queue_stopped(dev);
  	if (!stopped)
  		netif_stop_queue(dev);
  
  	while (lp->tx_old != lp->tx_new)
  		schedule();
  
  	WRITERAP(lp, LE_CSR0);
  	WRITERDP(lp, LE_C0_STOP);
  	lance_init_ring(dev);
  
  	if (dev->flags & IFF_PROMISC) {
  		ib->mode |= LE_MO_PROM;
  	} else {
  		ib->mode &= ~LE_MO_PROM;
  		lance_load_multicast(dev);
  	}
  	load_csrs(lp);
  	init_restart_lance(lp);
  
  	if (!stopped)
  		netif_start_queue(dev);
  }
  EXPORT_SYMBOL_GPL(lance_set_multicast);
  
  #ifdef CONFIG_NET_POLL_CONTROLLER
  void lance_poll(struct net_device *dev)
  {
  	struct lance_private *lp = netdev_priv(dev);
  
  	spin_lock(&lp->devlock);
  	WRITERAP(lp, LE_CSR0);
  	WRITERDP(lp, LE_C0_STRT);
  	spin_unlock(&lp->devlock);
  	lance_interrupt(dev->irq, dev);
  }
  EXPORT_SYMBOL_GPL(lance_poll);
  #endif
  
  MODULE_LICENSE("GPL");
  