* Authors: Lawrence V. Stefani, <stefani@lkg.dec.com>
*
* fddi.c is based on previous eth.c and tr.c work by
- * Ross Biro, <bir7@leland.Stanford.Edu>
+ * Ross Biro
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
* Mark Evans, <evansmp@uhura.aston.ac.uk>
* Florian La Roche, <rzsfl@rz.uni-sb.de>
* Maciej W. Rozycki : IPv6 support
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <asm/system.h>
#include <linux/types.h>
* daddr=NULL means leave destination address (eg unresolved arp)
*/
-int fddi_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
- void *daddr, void *saddr, unsigned len)
+static int fddi_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type,
+ void *daddr, void *saddr, unsigned len)
{
int hl = FDDI_K_SNAP_HLEN;
struct fddihdr *fddi;
* this sk_buff. We now let ARP fill in the other fields.
*/
-int fddi_rebuild_header(struct sk_buff *skb)
+static int fddi_rebuild_header(struct sk_buff *skb)
{
struct fddihdr *fddi = (struct fddihdr *)skb->data;
else
#endif
{
- printk("%s: Don't know how to resolve type %02X addresses.\n",
- skb->dev->name, htons(fddi->hdr.llc_snap.ethertype));
+ printk("%s: Don't know how to resolve type %04X addresses.\n",
+ skb->dev->name, ntohs(fddi->hdr.llc_snap.ethertype));
return(0);
}
}
* the proper pointer to the start of packet data (skb->data).
*/
-unsigned short fddi_type_trans(struct sk_buff *skb, struct net_device *dev)
+__be16 fddi_type_trans(struct sk_buff *skb, struct net_device *dev)
{
struct fddihdr *fddi = (struct fddihdr *)skb->data;
- unsigned short type;
+ __be16 type;
/*
* Set mac.raw field to point to FC byte, set data field to point
}
EXPORT_SYMBOL(fddi_type_trans);
+
+static int fddi_change_mtu(struct net_device *dev, int new_mtu)
+{
+ if ((new_mtu < FDDI_K_SNAP_HLEN) || (new_mtu > FDDI_K_SNAP_DLEN))
+ return(-EINVAL);
+ dev->mtu = new_mtu;
+ return(0);
+}
+
+static void fddi_setup(struct net_device *dev)
+{
+ dev->change_mtu = fddi_change_mtu;
+ dev->hard_header = fddi_header;
+ dev->rebuild_header = fddi_rebuild_header;
+
+ dev->type = ARPHRD_FDDI;
+ dev->hard_header_len = FDDI_K_SNAP_HLEN+3; /* Assume 802.2 SNAP hdr len + 3 pad bytes */
+ dev->mtu = FDDI_K_SNAP_DLEN; /* Assume max payload of 802.2 SNAP frame */
+ dev->addr_len = FDDI_K_ALEN;
+ dev->tx_queue_len = 100; /* Long queues on FDDI */
+ dev->flags = IFF_BROADCAST | IFF_MULTICAST;
+
+ memset(dev->broadcast, 0xFF, FDDI_K_ALEN);
+}
+
+/**
+ * alloc_fddidev - Register FDDI device
+ * @sizeof_priv: Size of additional driver-private structure to be allocated
+ * for this FDDI device
+ *
+ * Fill in the fields of the device structure with FDDI-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_fddidev(int sizeof_priv)
+{
+ return alloc_netdev(sizeof_priv, "fddi%d", fddi_setup);
+}
+EXPORT_SYMBOL(alloc_fddidev);