patch-2.3.42 linux/drivers/ap1000/bif.c

• Lines: 281
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.41/linux/drivers/ap1000/bif.c
• Orig date: Wed Aug 18 11:38:58 1999

diff -u --recursive --new-file v2.3.41/linux/drivers/ap1000/bif.c linux/drivers/ap1000/bif.c
@@ -1,280 +0,0 @@
-  /*
-   * Copyright 1996 The Australian National University.
-   * Copyright 1996 Fujitsu Laboratories Limited
-   * 
-   * This software may be distributed under the terms of the Gnu
-   * Public License version 2 or later
-  */
-/*
- * $Id: bif.c,v 1.13 1996/12/18 01:45:52 tridge Exp $
- *
- * Network interface definitions for bif device.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/fs.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/socket.h>
-#include <linux/errno.h>
-#include <linux/fcntl.h>
-#include <linux/in.h>
-#include <linux/if_ether.h>	/* For the statistics structure. */
-#include <linux/netdevice.h>
-#include <linux/if_arp.h>	/* For ARPHRD_BIF */
-
-#include <asm/system.h>
-#include <asm/segment.h>
-#include <asm/io.h>
-
-#include <linux/inet.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <net/sock.h>
-
-#include <asm/ap1000/apservice.h>
-#include <asm/ap1000/apreg.h>
-
-#define BIF_DEBUG 0
-#if BIF_DEBUG
-static int seq = 0;
-#endif
-
-#define BIF_MTU 10240
-
-static struct net_device *bif_device = 0;
-static struct net_device_stats *bif_stats = 0;
-
-int bif_init(struct net_device *dev);
-int bif_open(struct net_device *dev);
-static int bif_xmit(struct sk_buff *skb, struct net_device *dev);
-int bif_rx(struct sk_buff *skb);
-int bif_stop(struct net_device *dev);
-static struct net_device_stats *bif_get_stats(struct net_device *dev);
-
-static int bif_hard_header(struct sk_buff *skb, struct net_device *dev,
-			   unsigned short type, void *daddr,
-			   void *saddr, unsigned len)
-{
-#if BIF_DEBUG
-  printk("bif_hard_header()\n");
-#endif
-  
-  skb_push(skb,dev->hard_header_len);
-
-  if (daddr) skb->arp = 1;
-
-  /* tell IP how much space we took */
-  return (dev->hard_header_len);
-}
-
-static int bif_rebuild_header(void *buff, struct net_device *dev,
-			      unsigned long raddr, struct sk_buff *skb)
-{
-  /* this would normally be used to fill in hardware addresses after
-     an ARP */
-#if BIF_DEBUG
-  printk("bif_rebuild_header()\n");
-#endif
-  if (skb) skb->arp = 1;
-  return(0);
-}
-
-static int bif_set_mac_address(struct net_device *dev, void *addr)
-{
-  printk("BIF: set_mac_address called\n");
-  return (0);
-}
-
-static void bif_set_multicast_list(struct net_device *dev)
-{
-  return;
-}
-
-static int bif_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-  printk("BIF: Called do_ioctl\n");
-  return (0);
-}
-
-static int bif_set_config(struct net_device *dev, struct ifmap *map)
-{
-  printk("BIF: Called bif_set_config\n");
-  return (0);
-}
-
-/*
- * Initialise bif network interface.
- */
-int bif_init(struct net_device *dev)
-{
-    int i;
-
-    printk("bif_init(): Initialising bif interface\n");
-    bif_device = dev;
-
-    dev->mtu = BIF_MTU;
-    dev->tbusy = 0;
-    dev->hard_start_xmit = bif_xmit;
-    dev->hard_header = bif_hard_header;
-    dev->hard_header_len = sizeof(struct cap_request);
-    dev->addr_len = 0;
-    dev->tx_queue_len = 50000;    /* no limit (almost!) */
-    dev->type = ARPHRD_BIF;
-    dev->rebuild_header	= bif_rebuild_header;
-    dev->open = bif_open;
-    dev->flags = IFF_NOARP;   /* Don't use ARP on this device */
-    dev->priv = kmalloc(sizeof(struct net_device_stats), GFP_KERNEL);
-    if (dev->priv == NULL)
-	return -ENOMEM;
-    memset(dev->priv, 0, sizeof(struct net_device_stats));
-    bif_stats = (struct net_device_stats *)bif_device->priv;
-
-
-    dev->stop = bif_stop;
-    dev->get_stats = bif_get_stats;
-
-    dev->set_mac_address = bif_set_mac_address;
-    dev->header_cache_update = NULL;
-    dev->do_ioctl = bif_do_ioctl;    
-    dev->set_config = bif_set_config;
-    dev->set_multicast_list = bif_set_multicast_list;
-
-    memset(dev->broadcast, 0xFF, ETH_ALEN);
-
-    dev_init_buffers(dev);
-    
-    return(0);
-}
-
-int bif_open(struct net_device *dev)
-{
-    printk("In bif_open\n");
-    dev->tbusy = 0;
-    dev->start = 1;
-    return 0;
-}
-
-#if BIF_DEBUG
-static void dump_packet(char *action, char *buf, int len, int seq)
-{
-    int flags;
-    char *sep;
-
-    printk("%s packet %d of %d bytes at %d:\n", action, seq,
-	   len, (int)jiffies);
-    printk("  from %x to %x pktid=%d ttl=%d pcol=%d len=%d\n",
-	   *(long *)(buf+12), *(long *)(buf+16), *(u_short *)(buf+4),
-	   *(unsigned char *)(buf+8), buf[9], *(u_short *)(buf+2));
-    if( buf[9] == 6 || buf[9] == 17 ){
-	/* TCP or UDP */
-	printk("  sport=%d dport=%d",
-	       *(u_short *)(buf+20), *(u_short *)(buf+22));
-	if( buf[9] == 6 ){
-	    printk(" seq=%d ack=%d win=%d flags=<",
-		   *(long *)(buf+24), *(long *)(buf+28),
-		   *(unsigned short *)(buf+34));
-	    flags = buf[33];
-	    sep = "";
-	    printk(">");
-	}
-	printk("\n");
-    }
-    else {
-	printk("  protocol = %d\n", buf[9]);
-    }
-}
-#endif
-
-
-static int bif_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	extern int bif_send_ip(int cid,struct sk_buff *skb);
-	extern int tnet_send_ip(int cid,struct sk_buff *skb);
-	extern int msc_blocked, tnet_ip_enabled;
-	u_long destip;
-	int cid;
-
-	if (skb == NULL || dev == NULL) 
-		return(0);
-  
-	destip = *(u_long *)(skb->data+sizeof(struct cap_request)+16);
-	cid = ap_ip_to_cid(destip);
-
-	skb->dev = dev;
-	skb->mac.raw = skb->data;
-
-	if (cid != -1 && tnet_ip_enabled && !msc_blocked) {
-		tnet_send_ip(cid,skb);
-	} else {
-		bif_send_ip(cid, skb);
-	}
-  
-	dev->tbusy = 0;
-  
-	bif_stats->tx_packets++;
-
-	mark_bh(NET_BH);
-  
-	return 0;
-}
-
-
-/*
- * Receive a packet from the BIF - called from interrupt handler.
- */
-int bif_rx(struct sk_buff *skb)
-{
-#if BIF_DEBUG
-	dump_packet("bif_rx:", skb->data, skb->len, seq++);
-#endif
-
-	if (bif_device == NULL) {
-		printk("bif: bif_device is NULL in bif_rx\n");
-		dev_kfree_skb(skb);
-		return 0;
-	}
-	skb->dev = bif_device;
-	skb->protocol = ETH_P_IP;
-	
-#if 1
-	/* try disabling checksums on receive */
-	if (ap_ip_to_cid(*(u_long *)(((char *)skb->data)+12)) != -1)
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-#endif
-	
-	/*
-	 * Inform the network layer of the new packet.
-	 */
-	skb->mac.raw = skb->data;
-	netif_rx(skb);
-	
-	if (bif_stats == NULL) {
-		printk("bif: bif_stats is NULL is bif_rx\n");
-		return 0;
-	}
-	bif_stats->rx_packets++;
-	
-	return 0;
-}
-
-int bif_stop(struct net_device *dev)
-{
-	printk("in bif_close\n");
-
-	dev->tbusy = 1;
-	dev->start = 0;
-
-	return 0;
-}
-
-/*
- * Return statistics of bif driver.
- */
-static struct net_device_stats *bif_get_stats(struct net_device *dev)
-{
-    return((struct net_device_stats *)dev->priv);
-}
-