[NET]: Move hardware header operations out of netdevice.

[net-next-2.6.git] / net / ethernet / eth.c

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index bdeb2f0ace32e404680215ba98f008a39beefa17..ed8a3d49487dd263282d90e0cc91659b3fea0b7a 100644 (file)
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -75,8 +75,9 @@ __setup("ether=", netdev_boot_setup);
  * Set the protocol type. For a packet of type ETH_P_802_3 we put the length
  * in here instead. It is up to the 802.2 layer to carry protocol information.
  */
-int eth_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
-              void *daddr, void *saddr, unsigned len)
+int eth_header(struct sk_buff *skb, struct net_device *dev,
+              unsigned short type,
+              const void *daddr, const void *saddr, unsigned len)
 {
        struct ethhdr *eth = (struct ethhdr *)skb_push(skb, ETH_HLEN);
 
@@ -109,6 +110,7 @@ int eth_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
 
        return -ETH_HLEN;
 }
+EXPORT_SYMBOL(eth_header);
 
 /**
  * eth_rebuild_header- rebuild the Ethernet MAC header.
@@ -141,6 +143,7 @@ int eth_rebuild_header(struct sk_buff *skb)
 
        return 0;
 }
+EXPORT_SYMBOL(eth_rebuild_header);
 
 /**
  * eth_type_trans - determine the packet's protocol ID.
@@ -207,12 +210,13 @@ EXPORT_SYMBOL(eth_type_trans);
  * @skb: packet to extract header from
  * @haddr: destination buffer
  */
-static int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr)
+int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr)
 {
        const struct ethhdr *eth = eth_hdr(skb);
        memcpy(haddr, eth->h_source, ETH_ALEN);
        return ETH_ALEN;
 }
+EXPORT_SYMBOL(eth_header_parse);
 
 /**
  * eth_header_cache - fill cache entry from neighbour
@@ -220,11 +224,11 @@ static int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr)
  * @hh: destination cache entry
  * Create an Ethernet header template from the neighbour.
  */
-int eth_header_cache(struct neighbour *neigh, struct hh_cache *hh)
+int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh)
 {
        __be16 type = hh->hh_type;
        struct ethhdr *eth;
-       struct net_device *dev = neigh->dev;
+       const struct net_device *dev = neigh->dev;
 
        eth = (struct ethhdr *)
            (((u8 *) hh->hh_data) + (HH_DATA_OFF(sizeof(*eth))));
@@ -238,6 +242,7 @@ int eth_header_cache(struct neighbour *neigh, struct hh_cache *hh)
        hh->hh_len = ETH_HLEN;
        return 0;
 }
+EXPORT_SYMBOL(eth_header_cache);
 
 /**
  * eth_header_cache_update - update cache entry
@@ -247,12 +252,14 @@ int eth_header_cache(struct neighbour *neigh, struct hh_cache *hh)
  *
  * Called by Address Resolution module to notify changes in address.
  */
-void eth_header_cache_update(struct hh_cache *hh, struct net_device *dev,
-                            unsigned char *haddr)
+void eth_header_cache_update(struct hh_cache *hh,
+                            const struct net_device *dev,
+                            const unsigned char *haddr)
 {
        memcpy(((u8 *) hh->hh_data) + HH_DATA_OFF(sizeof(struct ethhdr)),
               haddr, ETH_ALEN);
 }
+EXPORT_SYMBOL(eth_header_cache_update);
 
 /**
  * eth_mac_addr - set new Ethernet hardware address
@@ -291,6 +298,14 @@ static int eth_change_mtu(struct net_device *dev, int new_mtu)
        return 0;
 }
 
+const struct header_ops eth_header_ops ____cacheline_aligned = {
+       .create         = eth_header,
+       .parse          = eth_header_parse,
+       .rebuild        = eth_rebuild_header,
+       .cache          = eth_header_cache,
+       .cache_update   = eth_header_cache_update,
+};
+
 /**
  * ether_setup - setup Ethernet network device
  * @dev: network device
@@ -298,13 +313,10 @@ static int eth_change_mtu(struct net_device *dev, int new_mtu)
  */
 void ether_setup(struct net_device *dev)
 {
+       dev->header_ops         = &eth_header_ops;
+
        dev->change_mtu         = eth_change_mtu;
-       dev->hard_header        = eth_header;
-       dev->rebuild_header     = eth_rebuild_header;
        dev->set_mac_address    = eth_mac_addr;
-       dev->hard_header_cache  = eth_header_cache;
-       dev->header_cache_update= eth_header_cache_update;
-       dev->hard_header_parse  = eth_header_parse;
 
        dev->type               = ARPHRD_ETHER;
        dev->hard_header_len    = ETH_HLEN;