GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-06 14:31:46 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

[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

43
include/linux/netdevice.h
View file

@ -250,6 +250,19 @@ struct hh_cache
#define LL_RESERVED_SPACE_EXTRA(dev,extra) \
((((dev)->hard_header_len+extra)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
struct header_ops {
int (*create) (struct sk_buff *skb, struct net_device *dev,
unsigned short type, const void *daddr,
const void *saddr, unsigned len);
int (*parse)(const struct sk_buff *skb, unsigned char *haddr);
int (*rebuild)(struct sk_buff *skb);
#define HAVE_HEADER_CACHE
int (*cache)(const struct neighbour *neigh, struct hh_cache *hh);
void (*cache_update)(struct hh_cache *hh,
const struct net_device *dev,
const unsigned char *haddr);
};
/* These flag bits are private to the generic network queueing
* layer, they may not be explicitly referenced by any other
* code.
@ -492,6 +505,9 @@ struct net_device
#endif
const struct ethtool_ops *ethtool_ops;
/* Hardware header description */
const struct header_ops *header_ops;
/*
* This marks the end of the "visible" part of the structure. All
* fields hereafter are internal to the system, and may change at
@ -615,13 +631,6 @@ struct net_device
int (*open)(struct net_device *dev);
int (*stop)(struct net_device *dev);
#define HAVE_NETDEV_POLL
int (*hard_header) (struct sk_buff *skb,
struct net_device *dev,
unsigned short type,
void *daddr,
void *saddr,
unsigned len);
int (*rebuild_header)(struct sk_buff *skb);
#define HAVE_CHANGE_RX_FLAGS
void (*change_rx_flags)(struct net_device *dev,
int flags);
@ -638,12 +647,6 @@ struct net_device
#define HAVE_SET_CONFIG
int (*set_config)(struct net_device *dev,
struct ifmap *map);
#define HAVE_HEADER_CACHE
int (*hard_header_cache)(struct neighbour *neigh,
struct hh_cache *hh);
void (*header_cache_update)(struct hh_cache *hh,
struct net_device *dev,
unsigned char * haddr);
#define HAVE_CHANGE_MTU
int (*change_mtu)(struct net_device *dev, int new_mtu);
@ -657,8 +660,6 @@ struct net_device
void (*vlan_rx_kill_vid)(struct net_device *dev,
unsigned short vid);
int (*hard_header_parse)(const struct sk_buff *skb,
unsigned char *haddr);
int (*neigh_setup)(struct net_device *dev, struct neigh_parms *);
#ifdef CONFIG_NETPOLL
struct netpoll_info *npinfo;
@ -802,11 +803,13 @@ extern int netpoll_trap(void);
static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type,
void *daddr, void *saddr, unsigned len)
const void *daddr, const void *saddr,
unsigned len)
{
if (!dev->hard_header)
if (!dev->header_ops)
return 0;
return dev->hard_header(skb, dev, type, daddr, saddr, len);
return dev->header_ops->create(skb, dev, type, daddr, saddr, len);
}
static inline int dev_parse_header(const struct sk_buff *skb,
@ -814,9 +817,9 @@ static inline int dev_parse_header(const struct sk_buff *skb,
{
const struct net_device *dev = skb->dev;
if (!dev->hard_header_parse)
if (!dev->header_ops->parse)
return 0;
return dev->hard_header_parse(skb, haddr);
return dev->header_ops->parse(skb, haddr);
}
typedef int gifconf_func_t(struct net_device * dev, char __user * bufptr, int len);