Eric Dumazet 55a93b3ea7 qdisc: validate skb without holding lock ... Validation of skb can be pretty expensive : GSO segmentation and/or checksum computations. We can do this without holding qdisc lock, so that other cpus can queue additional packets. Trick is that requeued packets were already validated, so we carry a boolean so that sch_direct_xmit() can validate a fresh skb list, or directly use an old one. Tested on 40Gb NIC (8 TX queues) and 200 concurrent flows, 48 threads host. Turning TSO on or off had no effect on throughput, only few more cpu cycles. Lock contention on qdisc lock disappeared. Same if disabling TX checksum offload. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-10-03 15:36:11 -07:00
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datagram.c	net: treewide: Fix typo found in DocBook/networking.xml	2014-09-05 17:35:28 -07:00
dev_addr_lists.c	net: Add support for device specific address syncing	2014-06-02 10:40:54 -07:00
dev_ioctl.c	dev_ioctl: remove dev_load() CAP_SYS_MODULE message	2014-09-05 12:04:40 -07:00
dev.c	qdisc: validate skb without holding lock	2014-10-03 15:36:11 -07:00
drop_monitor.c	drop_monitor: remove unnecessary break after return	2014-07-15 16:27:00 -07:00
dst.c	ipv4: fix dst race in sk_dst_get()	2014-06-25 17:41:44 -07:00
ethtool.c	ethtool: Add generic options for tunables	2014-09-05 12:12:20 -07:00
fib_rules.c	net: fix 'ip rule' iif/oif device rename	2014-02-09 19:02:52 -08:00
filter.c	net: bpf: correctly handle errors in sk_attach_filter()	2014-09-13 17:37:49 -04:00
flow_dissector.c	net: Add function for parsing the header length out of linear ethernet frames	2014-09-05 17:47:02 -07:00
flow.c	CPU hotplug notifiers registration fixes for 3.15-rc1	2014-04-07 14:55:46 -07:00
gen_estimator.c	net: sched: make bstats per cpu and estimator RCU safe	2014-09-30 01:02:26 -04:00
gen_stats.c	net: sched: enable per cpu qstats	2014-09-30 01:02:26 -04:00
iovec.c	net: sendmsg: fix NULL pointer dereference	2014-07-29 12:20:22 -07:00
link_watch.c	arch: Mass conversion of smp_mb__*()	2014-04-18 14:20:48 +02:00
Makefile	net: Add a software TSO helper API	2014-05-22 14:57:15 -04:00
neighbour.c	neighbour : fix ndm_type type error issue	2014-07-28 17:52:17 -07:00
net_namespace.c	netns: remove one sparse warning	2014-09-09 20:10:45 -07:00
net-procfs.c
net-sysfs.c	net: do not name the pointer to struct net_device net	2014-07-24 23:33:55 -07:00
net-sysfs.h	net: netdev_kobject_init: annotate with __init	2014-01-05 20:27:54 -05:00
net-traces.c
netclassid_cgroup.c	cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes	2014-07-15 11:05:09 -04:00
netevent.c
netpoll.c	net: Pass a "more" indication down into netdev_start_xmit() code paths.	2014-09-01 17:39:55 -07:00
netprio_cgroup.c	cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes	2014-07-15 11:05:09 -04:00
pktgen.c	net: pktgen: packet bursting via skb->xmit_more	2014-10-01 22:08:12 -04:00
ptp_classifier.c	net: filter: split 'struct sk_filter' into socket and bpf parts	2014-08-02 15:03:58 -07:00
request_sock.c	inet: reduce TLB pressure for listeners	2014-06-25 16:37:24 -07:00
rtnetlink.c	rtnl/do_setlink(): notify when a netdev is modified	2014-09-02 12:57:04 -07:00
scm.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2013-09-07 14:35:32 -07:00
secure_seq.c	net: use ktime_get_ns() and ktime_get_real_ns() helpers	2014-08-22 19:57:23 -07:00
skbuff.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-10-02 11:25:43 -07:00
sock_diag.c	net: filter: split 'struct sk_filter' into socket and bpf parts	2014-08-02 15:03:58 -07:00
sock.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-09-23 12:09:27 -04:00
stream.c	net: replace macros net_random and net_srandom with direct calls to prandom	2014-01-14 15:15:25 -08:00
sysctl_net_core.c	rps: NUMA flow limit allocations	2013-12-19 19:00:07 -05:00
timestamping.c	net-timestamp: Make the clone operation stand-alone from phy timestamping	2014-09-05 17:43:45 -07:00
tso.c	net: tso: Export symbols for modular build	2014-05-30 15:52:03 -07:00
user_dma.c
utils.c	net: optimise inet_proto_csum_replace4()	2014-09-26 16:14:17 -04:00