X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=net%2F802%2Ftr.c;h=e9dc803f2fe0a67de78c4219227f4876352cd89a;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=bd22ae2aabffebfc5fcd104860e65f86e35183d1;hpb=9bf4aaab3e101692164d49b7ca357651eb691cb6;p=linux-2.6.git

diff --git a/net/802/tr.c b/net/802/tr.c
index bd22ae2aa..e9dc803f2 100644
--- a/net/802/tr.c
+++ b/net/802/tr.c
@@ -47,12 +47,12 @@ static void rif_check_expire(unsigned long dummy);
  *	Each RIF entry we learn is kept this way
  */
  
-struct rif_cache_s {	
+struct rif_cache {
 	unsigned char addr[TR_ALEN];
 	int iface;
-	__u16 rcf;
-	__u16 rseg[8];
-	struct rif_cache_s *next;
+	__be16 rcf;
+	__be16 rseg[8];
+	struct rif_cache *next;
 	unsigned long last_used;
 	unsigned char local_ring;
 };
@@ -64,9 +64,9 @@ struct rif_cache_s {
  *	up a lot.
  */
  
-static struct rif_cache_s *rif_table[RIF_TABLE_SIZE];
+static struct rif_cache *rif_table[RIF_TABLE_SIZE];
 
-static spinlock_t rif_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(rif_lock);
 
 
 /*
@@ -98,8 +98,9 @@ static inline unsigned long rif_hash(const unsigned char *addr)
  *	makes this a little more exciting than on ethernet.
  */
  
-int tr_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
-              void *daddr, void *saddr, unsigned len) 
+static int tr_header(struct sk_buff *skb, struct net_device *dev,
+		     unsigned short type,
+		     void *daddr, void *saddr, unsigned len) 
 {
 	struct trh_hdr *trh;
 	int hdr_len;
@@ -153,7 +154,7 @@ int tr_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
  *	can now send the packet.
  */
  
-int tr_rebuild_header(struct sk_buff *skb) 
+static int tr_rebuild_header(struct sk_buff *skb) 
 {
 	struct trh_hdr *trh=(struct trh_hdr *)skb->data;
 	struct trllc *trllc=(struct trllc *)(skb->data+sizeof(struct trh_hdr));
@@ -237,7 +238,7 @@ unsigned short tr_type_trans(struct sk_buff *skb, struct net_device *dev)
 		return trllc->ethertype;
 	}
 
-	return ntohs(ETH_P_802_2);
+	return ntohs(ETH_P_TR_802_2);
 }
 
 /*
@@ -248,12 +249,13 @@ void tr_source_route(struct sk_buff *skb,struct trh_hdr *trh,struct net_device *
 {
 	int slack;
 	unsigned int hash;
-	struct rif_cache_s *entry;
+	struct rif_cache *entry;
 	unsigned char *olddata;
+	unsigned long flags;
 	static const unsigned char mcast_func_addr[] 
 		= {0xC0,0x00,0x00,0x04,0x00,0x00};
 	
-	spin_lock_bh(&rif_lock);
+	spin_lock_irqsave(&rif_lock, flags);
 
 	/*
 	 *	Broadcasts are single route as stated in RFC 1042 
@@ -322,7 +324,7 @@ printk("source routing for %02X:%02X:%02X:%02X:%02X:%02X\n",trh->daddr[0],
 	else 
 		slack = 18 - ((ntohs(trh->rcf) & TR_RCF_LEN_MASK)>>8);
 	olddata = skb->data;
-	spin_unlock_bh(&rif_lock);
+	spin_unlock_irqrestore(&rif_lock, flags);
 
 	skb_pull(skb, slack);
 	memmove(skb->data, olddata, sizeof(struct trh_hdr) - slack);
@@ -336,10 +338,12 @@ printk("source routing for %02X:%02X:%02X:%02X:%02X:%02X\n",trh->daddr[0],
 static void tr_add_rif_info(struct trh_hdr *trh, struct net_device *dev)
 {
 	unsigned int hash, rii_p = 0;
-	struct rif_cache_s *entry;
+	unsigned long flags;
+	struct rif_cache *entry;
+	unsigned char saddr0;
 
-
-	spin_lock_bh(&rif_lock);
+	spin_lock_irqsave(&rif_lock, flags);
+	saddr0 = trh->saddr[0];
 	
 	/*
 	 *	Firstly see if the entry exists
@@ -372,12 +376,12 @@ printk("adding rif_entry: addr:%02X:%02X:%02X:%02X:%02X:%02X rcf:%04X\n",
 		 *	FIXME: We ought to keep some kind of cache size
 		 *	limiting and adjust the timers to suit.
 		 */
-		entry=kmalloc(sizeof(struct rif_cache_s),GFP_ATOMIC);
+		entry=kmalloc(sizeof(struct rif_cache),GFP_ATOMIC);
 
 		if(!entry) 
 		{
 			printk(KERN_DEBUG "tr.c: Couldn't malloc rif cache entry !\n");
-			spin_unlock_bh(&rif_lock);
+			spin_unlock_irqrestore(&rif_lock, flags);
 			return;
 		}
 
@@ -392,7 +396,6 @@ printk("adding rif_entry: addr:%02X:%02X:%02X:%02X:%02X:%02X rcf:%04X\n",
 			entry->rcf = trh->rcf & htons((unsigned short)~TR_RCF_BROADCAST_MASK);
 			memcpy(&(entry->rseg[0]),&(trh->rseg[0]),8*sizeof(unsigned short));
 			entry->local_ring = 0;
-			trh->saddr[0]|=TR_RII; /* put the routing indicator back for tcpdump */
 		}
 		else
 		{
@@ -419,7 +422,8 @@ printk("updating rif_entry: addr:%02X:%02X:%02X:%02X:%02X:%02X rcf:%04X\n",
 		    }                                         
            	entry->last_used=jiffies;               
 	}
-	spin_unlock_bh(&rif_lock);
+	trh->saddr[0]=saddr0; /* put the routing indicator back for tcpdump */
+	spin_unlock_irqrestore(&rif_lock, flags);
 }
 
 /*
@@ -429,12 +433,12 @@ printk("updating rif_entry: addr:%02X:%02X:%02X:%02X:%02X:%02X rcf:%04X\n",
 static void rif_check_expire(unsigned long dummy) 
 {
 	int i;
-	unsigned long next_interval = jiffies + sysctl_tr_rif_timeout/2;
+	unsigned long flags, next_interval = jiffies + sysctl_tr_rif_timeout/2;
 
-	spin_lock_bh(&rif_lock);
+	spin_lock_irqsave(&rif_lock, flags);
 	
 	for(i =0; i < RIF_TABLE_SIZE; i++) {
-		struct rif_cache_s *entry, **pentry;
+		struct rif_cache *entry, **pentry;
 		
 		pentry = rif_table+i;
 		while((entry=*pentry) != NULL) {
@@ -453,7 +457,7 @@ static void rif_check_expire(unsigned long dummy)
 		}
 	}
 	
-	spin_unlock_bh(&rif_lock);
+	spin_unlock_irqrestore(&rif_lock, flags);
 
 	mod_timer(&rif_timer, next_interval);
 
@@ -466,10 +470,10 @@ static void rif_check_expire(unsigned long dummy)
  
 #ifdef CONFIG_PROC_FS
 
-static struct rif_cache_s *rif_get_idx(loff_t pos)
+static struct rif_cache *rif_get_idx(loff_t pos)
 {
 	int i;
-	struct rif_cache_s *entry;
+	struct rif_cache *entry;
 	loff_t off = 0;
 
 	for(i = 0; i < RIF_TABLE_SIZE; i++) 
@@ -484,7 +488,7 @@ static struct rif_cache_s *rif_get_idx(loff_t pos)
 
 static void *rif_seq_start(struct seq_file *seq, loff_t *pos)
 {
-	spin_lock_bh(&rif_lock);
+	spin_lock_irq(&rif_lock);
 
 	return *pos ? rif_get_idx(*pos - 1) : SEQ_START_TOKEN;
 }
@@ -492,7 +496,7 @@ static void *rif_seq_start(struct seq_file *seq, loff_t *pos)
 static void *rif_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	int i;
-	struct rif_cache_s *ent = v;
+	struct rif_cache *ent = v;
 
 	++*pos;
 
@@ -515,13 +519,13 @@ static void *rif_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 
 static void rif_seq_stop(struct seq_file *seq, void *v)
 {
-	spin_unlock_bh(&rif_lock);
+	spin_unlock_irq(&rif_lock);
 }
 
 static int rif_seq_show(struct seq_file *seq, void *v)
 {
 	int j, rcf_len, segment, brdgnmb;
-	struct rif_cache_s *entry = v;
+	struct rif_cache *entry = v;
 
 	if (v == SEQ_START_TOKEN)
 		seq_puts(seq,
@@ -583,6 +587,43 @@ static struct file_operations rif_seq_fops = {
 
 #endif
 
+static void tr_setup(struct net_device *dev)
+{
+	/*
+	 *	Configure and register
+	 */
+	
+	dev->hard_header	= tr_header;
+	dev->rebuild_header	= tr_rebuild_header;
+
+	dev->type		= ARPHRD_IEEE802_TR;
+	dev->hard_header_len	= TR_HLEN;
+	dev->mtu		= 2000;
+	dev->addr_len		= TR_ALEN;
+	dev->tx_queue_len	= 100;	/* Long queues on tr */
+	
+	memset(dev->broadcast,0xFF, TR_ALEN);
+
+	/* New-style flags. */
+	dev->flags		= IFF_BROADCAST | IFF_MULTICAST ;
+}
+
+/**
+ * alloc_trdev - Register token ring device
+ * @sizeof_priv: Size of additional driver-private structure to be allocated
+ *	for this token ring device
+ *
+ * Fill in the fields of the device structure with token ring-generic values.
+ *
+ * Constructs a new net device, complete with a private data area of
+ * size @sizeof_priv.  A 32-byte (not bit) alignment is enforced for
+ * this private data area.
+ */
+struct net_device *alloc_trdev(int sizeof_priv)
+{
+	return alloc_netdev(sizeof_priv, "tr%d", tr_setup);
+}
+
 /*
  *	Called during bootup.  We don't actually have to initialise
  *	too much for this.
@@ -602,5 +643,5 @@ static int __init rif_init(void)
 
 module_init(rif_init);
 
-EXPORT_SYMBOL(tr_source_route);
 EXPORT_SYMBOL(tr_type_trans);
+EXPORT_SYMBOL(alloc_trdev);