Eric Dumazet a50e233c50 net-gro: restore frag0 optimization ... Main difference between napi_frags_skb() and napi_gro_receive() is that the later is called while ethernet header was already pulled by the NIC driver (eth_type_trans() was called before napi_gro_receive()) Jerry Chu in commit 299603e837 ("net-gro: Prepare GRO stack for the upcoming tunneling support") tried to remove this difference by calling eth_type_trans() from napi_frags_skb() instead of doing this later from napi_frags_finish() Goal was that napi_gro_complete() could call ptype->callbacks.gro_complete(skb, 0) (offset of first network header = 0) Also, xxx_gro_receive() handlers all use off = skb_gro_offset(skb) to point to their own header, for the current skb and ones held in gro_list Problem is this cleanup work defeated the frag0 optimization: It turns out the consecutive pskb_may_pull() calls are too expensive. This patch brings back the frag0 stuff in napi_frags_skb(). As all skb have their mac header in skb head, we no longer need skb_gro_mac_header() Reported-by: Michal Schmidt <mschmidt@redhat.com> Fixes: 299603e837 ("net-gro: Prepare GRO stack for the upcoming tunneling support") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jerry Chu <hkchu@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-03-31 16:26:40 -04:00
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datagram.c
dev_addr_lists.c	net: Correctly sync addresses from multiple sources to single device	2014-01-23 13:06:34 -08:00
dev_ioctl.c
dev.c	net-gro: restore frag0 optimization	2014-03-31 16:26:40 -04:00
drop_monitor.c
dst.c
ethtool.c
fib_rules.c	net: fix 'ip rule' iif/oif device rename	2014-02-09 19:02:52 -08:00
filter.c	net: filter: rework/optimize internal BPF interpreter's instruction set	2014-03-31 00:45:09 -04:00
flow_dissector.c	net: Rename skb->rxhash to skb->hash	2014-03-26 15:58:20 -04:00
flow.c	flowcache: Fix resource leaks on namespace exit.	2014-03-12 15:31:18 -04:00
gen_estimator.c
gen_stats.c
iovec.c
link_watch.c
Makefile
neighbour.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-03-05 20:32:02 -05:00
net_namespace.c
net-procfs.c
net-sysfs.c	net-sysfs: expose number of carrier on/off changes	2014-03-31 16:24:52 -04:00
net-sysfs.h
net-traces.c
netclassid_cgroup.c
netevent.c
netpoll.c	netpoll: Respect NETIF_F_LLTX	2014-03-29 17:58:37 -04:00
netprio_cgroup.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-01-25 11:17:34 -08:00
pktgen.c	pktgen: document all supported flags	2014-02-24 18:54:26 -05:00
request_sock.c	net: remove unnecessary return's	2014-02-13 18:33:38 -05:00
rtnetlink.c	net-sysfs: expose number of carrier on/off changes	2014-03-31 16:24:52 -04:00
scm.c
secure_seq.c
skbuff.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-03-29 18:48:54 -04:00
sock_diag.c	net: filter: keep original BPF program around	2014-03-31 00:45:09 -04:00
sock.c	tcp: tcp_release_cb() should release socket ownership	2014-03-11 16:45:59 -04:00
stream.c
sysctl_net_core.c
timestamping.c	net: ptp: do not reimplement PTP/BPF classifier	2014-03-31 00:45:09 -04:00
user_dma.c
utils.c