lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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

Browse Source 
Since hardware header operations are part of the protocol class
not the device instance, make them into a separate object and
save memory.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger
2007-10-09 01:40:57 -07:00
committed by David S. Miller
parent b95cce3576
commit 3b04ddde02
65 changed files with 479 additions and 473 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/net/myri_sbus.c
View File

@@ -676,8 +676,9 @@ static int myri_start_xmit(struct sk_buff *skb, struct net_device *dev)
* saddr=NULL means use device source address
* daddr=NULL means leave destination address (eg unresolved arp)
*/
static int myri_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
void *daddr, void *saddr, unsigned len)
static int myri_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);
unsigned char *pad = (unsigned char *) skb_push(skb, MYRI_PAD_LEN);
@@ -759,18 +760,18 @@ static int myri_rebuild_header(struct sk_buff *skb)
return 0;
}
int myri_header_cache(struct neighbour *neigh, struct hh_cache *hh)
static int myri_header_cache(const struct neighbour *neigh, struct hh_cache *hh)
{
unsigned short type = hh->hh_type;
unsigned char *pad;
struct ethhdr *eth;
struct net_device *dev = neigh->dev;
const struct net_device *dev = neigh->dev;
pad = ((unsigned char *) hh->hh_data) +
HH_DATA_OFF(sizeof(*eth) + MYRI_PAD_LEN);
eth = (struct ethhdr *) (pad + MYRI_PAD_LEN);
if (type == __constant_htons(ETH_P_802_3))
if (type == htons(ETH_P_802_3))
return -1;
/* Refill MyriNet padding identifiers, this is just being anal. */
@@ -786,7 +787,9 @@ int myri_header_cache(struct neighbour *neigh, struct hh_cache *hh)
/* Called by Address Resolution module to notify changes in address. */
void myri_header_cache_update(struct hh_cache *hh, struct net_device *dev, unsigned char * haddr)
void myri_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, dev->addr_len);
@@ -881,6 +884,13 @@ static void dump_eeprom(struct myri_eth *mp)
}
#endif
static const struct header_ops myri_header_ops = {
.create = myri_header,
.rebuild = myri_rebuild_header,
.cache = myri_header_cache,
.cache_update = myri_header_cache_update,
};
static int __devinit myri_ether_init(struct sbus_dev *sdev)
{
static int num;
@@ -1065,11 +1075,9 @@ static int __devinit myri_ether_init(struct sbus_dev *sdev)
dev->mtu = MYRINET_MTU;
dev->change_mtu = myri_change_mtu;
dev->hard_header = myri_header;
dev->rebuild_header = myri_rebuild_header;
dev->header_ops = &myri_header_ops;
dev->hard_header_len = (ETH_HLEN + MYRI_PAD_LEN);
dev->hard_header_cache = myri_header_cache;
dev->header_cache_update= myri_header_cache_update;
/* Load code onto the LANai. */
DET(("Loading LANAI firmware\n"));