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Herbert Xu 86911732d3 gro: Avoid copying headers of unmerged packets 
Unfortunately simplicity isn't always the best.  The fraginfo
interface turned out to be suboptimal.  The problem was quite
obvious.  For every packet, we have to copy the headers from
the frags structure into skb->head, even though for 99% of the
packets this part is immediately thrown away after the merge.

LRO didn't have this problem because it directly read the headers
from the frags structure.

This patch attempts to address this by creating an interface
that allows GRO to access the headers in the first frag without
having to copy it.  Because all drivers that use frags place the
headers in the first frag this optimisation should be enough.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2009-01-29 16:33:03 -08:00
..
9p net/9p: fid->fid is used uninitialized 2009-01-19 16:20:15 -08:00
802
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8021q gro: Avoid copying headers of unmerged packets 2009-01-29 16:33:03 -08:00
appletalk appletalk: remove unneeded stubs 2009-01-21 14:02:18 -08:00
atm lec: convert to net_device_ops 2009-01-21 14:02:00 -08:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
bluetooth bluetooth: driver API update 2009-01-07 17:23:17 -08:00
bridge netfilter 05/09: ebtables: fix inversion in match code 2009-01-12 21:18:35 -08:00
can can: fix slowpath issue in hrtimer callback function 2009-01-14 21:06:55 -08:00
core gro: Avoid copying headers of unmerged packets 2009-01-29 16:33:03 -08:00
dcb DCB: fix kfree(skb) 2009-01-04 17:29:21 -08:00
dccp dccp: Debugging functions for feature negotiation 2009-01-21 14:34:05 -08:00
decnet
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dsa dsa: convert to net_device_ops (v2) 2009-01-06 16:45:26 -08:00
econet
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ethernet
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ipv4 gro: Avoid copying headers of unmerged packets 2009-01-29 16:33:03 -08:00
ipv6 gro: Avoid copying headers of unmerged packets 2009-01-29 16:33:03 -08:00
ipx
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irda tty: Fix an ircomm warning and note another bug 2009-01-02 10:19:43 -08:00
iucv s390: remove s390_root_dev_*() 2009-01-06 10:44:34 -08:00
key af_key: initialize xfrm encap_oa 2009-01-25 20:49:14 -08:00
lapb
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llc
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mac80211 mac80211: fix slot time debug message 2009-01-22 13:55:01 -05:00
netfilter netfilter: ctnetlink: fix scheduling while atomic 2009-01-21 12:19:49 -08:00
netlabel netlabel: Update kernel configuration API 2008-12-31 12:54:11 -05:00
netlink genetlink: export genl_unregister_mc_group() 2009-01-07 10:00:17 -08:00
netrom netrom: convert to net_device_ops 2009-01-21 14:02:02 -08:00
packet
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phonet Phonet: use per-namespace devices list 2009-01-26 21:03:35 -08:00
rfkill net/rfkill/rfkill.c: fix unused rfkill_led_trigger() warning 2009-01-04 17:11:24 -08:00
rose rose: convert to network_device_ops 2009-01-21 14:02:04 -08:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2008-12-28 12:49:40 -08:00
sched pkt_sched: sch_htb: Break all htb_do_events() after 2 jiffies 2009-01-12 21:54:40 -08:00
sctp Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-01-26 17:43:16 -08:00
sunrpc fs/Kconfig: move sunrpc out 2009-01-22 13:16:00 +03:00
tipc net/tipc/bcast.h: use ARRAY_SIZE 2009-01-11 00:06:33 -08:00
unix introduce new LSM hooks where vfsmount is available. 2008-12-31 18:07:37 -05:00
wanrouter
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wimax wimax: testing for rfkill support should also test for CONFIG_RFKILL_MODULE 2009-01-08 11:08:01 -08:00
wireless cfg80211: Fix parsed country IE info for 5 GHz 2009-01-16 17:08:24 -05:00
x25
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xfrm Revert "xfrm: For 32/64 compatability wrt. xfrm_usersa_info" 2009-01-20 09:49:51 -08:00
Kconfig Phonet: move to Networking options like other protocol stacks 2009-01-26 21:03:33 -08:00
Makefile wimax: Makefile, Kconfig and docbook linkage for the stack 2009-01-07 10:00:17 -08:00
TUNABLE
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compat.c
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nonet.c
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socket.c [CVE-2009-0029] System call wrappers part 22 2009-01-14 14:15:27 +01:00
sysctl_net.c
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