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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6lowpan	6lowpan: Allow 6LoWPAN to be modular	2014-08-07 11:44:18 -07:00
9p	9P: remove unnecessary break after return	2014-07-15 16:27:00 -07:00
802	net: set name_assign_type in alloc_netdev()	2014-07-15 16:12:48 -07:00
8021q	net: Always untag vlan-tagged traffic on input.	2014-08-11 12:16:51 -07:00
appletalk	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-07-16 14:09:34 -07:00
atm	atm: Convert pr_warning to pr_warn	2014-09-10 12:40:10 -07:00
ax25	…
batman-adv	batman-adv: Fix parameter order of hlist_add_behind	2014-08-16 19:19:08 -07:00
bluetooth	Bluetooth: Fix re-setting RPA as expired when deferring update	2014-09-12 18:34:25 +02:00
bridge	net: bridge: add a br_set_state helper function	2014-10-01 22:03:50 -04:00
caif	caif: remove unnecessary break after goto	2014-07-15 16:27:01 -07:00
can	…
ceph	libceph: do not hard code max auth ticket len	2014-09-10 20:08:36 +04:00
core	qdisc: validate skb without holding lock	2014-10-03 15:36:11 -07:00
dcb	dcbnl : Fix misleading dcb_app->priority explanation	2014-07-30 17:21:05 -07:00
dccp	net/dccp/ccid.c: add __init to ccid_activate	2014-10-01 18:33:13 -04:00
decnet	af_decnet: Use time_after_eq	2014-08-22 12:23:11 -07:00
dns_resolver	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2014-08-06 08:06:39 -07:00
dsa	net: dsa: Fix build warning for !PM_SLEEP	2014-10-01 15:24:00 -04:00
ethernet	net: Add function for parsing the header length out of linear ethernet frames	2014-09-05 17:47:02 -07:00
hsr	net/hsr: Remove left-over never-true conditional code.	2014-07-11 15:04:40 -07:00
ieee802154	ieee802154: fix __init functions	2014-10-01 02:03:13 -04:00
ipv4	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-10-02 11:25:43 -07:00
ipv6	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-10-02 11:25:43 -07:00
ipx	…
irda	irda: add __init to irlan_open	2014-09-30 17:08:06 -04:00
iucv	iucv: Convert pr_warning to pr_warn	2014-09-10 12:40:10 -07:00
key	af_key: remove unnecessary break after return	2014-07-15 16:27:00 -07:00
l2tp	l2tp: Refactor l2tp core driver to make use of the common UDP tunnel functions	2014-09-19 15:57:15 -04:00
lapb	…
llc	…
mac80211	Merge tag 'master-2014-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next	2014-09-26 15:39:24 -04:00
mac802154	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless	2014-09-08 11:14:56 -04:00
mpls	net: Remove gso_send_check as an offload callback	2014-09-26 00:22:47 -04:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-10-02 11:25:43 -07:00
netlabel	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-08-06 09:38:14 -07:00
netlink	netlink: Annotate RCU locking for seq_file walker	2014-08-14 15:13:40 -07:00
netrom	net: set name_assign_type in alloc_netdev()	2014-07-15 16:12:48 -07:00
nfc	Merge tag 'master-2014-07-31' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next	2014-08-05 13:18:20 -07:00
openvswitch	net/openvswitch: remove dup comment in vport.h	2014-09-26 16:42:33 -04:00
packet	net: Pass a "more" indication down into netdev_start_xmit() code paths.	2014-09-01 17:39:55 -07:00
phonet	net: set name_assign_type in alloc_netdev()	2014-07-15 16:12:48 -07:00
rds	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-06-12 14:27:40 -07:00
rfkill	net: rfkill: gpio: Fix clock status	2014-09-22 16:02:15 -04:00
rose	rose: use %*ph specifier	2014-09-07 16:07:25 -07:00
rxrpc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-09-23 12:09:27 -04:00
sched	qdisc: validate skb without holding lock	2014-10-03 15:36:11 -07:00
sctp	net/ipv4: bind ip_nonlocal_bind to current netns	2014-09-09 11:27:09 -07:00
sunrpc	NFS client updates for Linux 3.17	2014-08-13 18:13:19 -06:00
tipc	tipc: fix sparse warnings	2014-09-10 14:00:58 -07:00
unix	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-06-12 14:27:40 -07:00
vmw_vsock	…
wimax	…
wireless	Merge tag 'master-2014-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next	2014-09-26 15:39:24 -04:00
x25	…
xfrm	net: cleanup and document skb fclone layout	2014-10-01 16:34:25 -04:00
Kconfig	netfilter: bridge: build br_nf_core only if required	2014-09-30 14:07:51 -04:00
Makefile	6lowpan: introduce new net/6lowpan directory	2014-07-12 01:53:30 +02:00
compat.c	net: sendmsg: fix NULL pointer dereference	2014-07-29 12:20:22 -07:00
nonet.c	…
socket.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-09-23 12:09:27 -04:00
sysctl_net.c	…