diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:28:04 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-06-16 11:28:04 +0200 |
commit | 7aaaec38fcd9ef3172e69f8c19f20113830a8498 (patch) | |
tree | b12a1c359ad53ae10601f77b3438bb27c3c8f337 /include/linux/netdevice.h | |
parent | 1ac97018169c5a13feaa90d9671f2d6ba2d9e86e (diff) | |
parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) |
Merge branch 'linus' into x86/kconfigtip-x86-kconfig-2008-06-16_09.28_Mon
Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r-- | include/linux/netdevice.h | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 7c1d4466583b..f27fd2009334 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -93,14 +93,16 @@ struct wireless_dev; * used. */ -#if !defined(CONFIG_AX25) && !defined(CONFIG_AX25_MODULE) && !defined(CONFIG_TR) -#define LL_MAX_HEADER 32 +#if defined(CONFIG_WLAN_80211) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE) +# if defined(CONFIG_MAC80211_MESH) +# define LL_MAX_HEADER 128 +# else +# define LL_MAX_HEADER 96 +# endif +#elif defined(CONFIG_TR) +# define LL_MAX_HEADER 48 #else -#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE) -#define LL_MAX_HEADER 96 -#else -#define LL_MAX_HEADER 48 -#endif +# define LL_MAX_HEADER 32 #endif #if !defined(CONFIG_NET_IPIP) && !defined(CONFIG_NET_IPIP_MODULE) && \ @@ -244,11 +246,16 @@ struct hh_cache * * We could use other alignment values, but we must maintain the * relationship HH alignment <= LL alignment. + * + * LL_ALLOCATED_SPACE also takes into account the tailroom the device + * may need. */ #define LL_RESERVED_SPACE(dev) \ - (((dev)->hard_header_len&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) + ((((dev)->hard_header_len+(dev)->needed_headroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) #define LL_RESERVED_SPACE_EXTRA(dev,extra) \ - ((((dev)->hard_header_len+extra)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) + ((((dev)->hard_header_len+(dev)->needed_headroom+(extra))&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) +#define LL_ALLOCATED_SPACE(dev) \ + ((((dev)->hard_header_len+(dev)->needed_headroom+(dev)->needed_tailroom)&~(HH_DATA_MOD - 1)) + HH_DATA_MOD) struct header_ops { int (*create) (struct sk_buff *skb, struct net_device *dev, @@ -567,6 +574,13 @@ struct net_device unsigned short type; /* interface hardware type */ unsigned short hard_header_len; /* hardware hdr length */ + /* extra head- and tailroom the hardware may need, but not in all cases + * can this be guaranteed, especially tailroom. Some cases also use + * LL_MAX_HEADER instead to allocate the skb. + */ + unsigned short needed_headroom; + unsigned short needed_tailroom; + struct net_device *master; /* Pointer to master device of a group, * which this device is member of. */ @@ -715,6 +729,9 @@ struct net_device struct net *nd_net; #endif + /* mid-layer private */ + void *ml_priv; + /* bridge stuff */ struct net_bridge_port *br_port; /* macvlan */ @@ -728,6 +745,9 @@ struct net_device /* rtnetlink link ops */ const struct rtnl_link_ops *rtnl_link_ops; + /* VLAN feature mask */ + unsigned long vlan_features; + /* for setting kernel sock attribute on TCP connection setup */ #define GSO_MAX_SIZE 65536 unsigned int gso_max_size; |