Ilan Tayari eaffadbbb3 gso: Support frag_list splitting with head_frag ... A driver may use build_skb() for received packets. These SKBs then have a head_frag. Since commit d7e8883cfc ("net: make GRO aware of skb->head_frag"), GRO may build frag_list SKBs out of head_frag received SKBs. In such a case, the chained SKBs end up with a head_frag. Commit 07b26c9454 ("gso: Support partial splitting at the frag_list pointer") adds partial segmentation of frag_list SKB chains into individual SKBs. However, this is not done if the chained SKBs have any linear part, because the device may not be able to DMA the private linear buffer. A chained frag_list SKB with head_frag is wrongfully detected in this case as having a private linear part and thus falls back to software GSO, while in fact the linear part is backed by a DMA page just like any other frag. This causes low performance when forwarding those packets that were built with build_skb() Allow partial segmentation at the frag_list pointer for chained SKBs with head_frag. Note that such SKBs can only be created by GRO, when applied to received packets with head_frag. Also note that this change only affects the data path that performs the partial segmentation at frag_list pointer, and not any of the other more common data paths. Signed-off-by: Ilan Tayari <ilant@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-04-12 13:53:35 -04:00
..
6lowpan
9p	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 21:44:35 -08:00
802
8021q	net/8021q: create device with all possible features in wanted_features	2017-03-21 15:26:26 -07:00
appletalk	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
atm	neighbour: fix nlmsg_pid in notifications	2017-03-22 10:48:49 -07:00
ax25	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
batman-adv	This feature/cleanup patchset includes the following patches:	2017-04-06 14:37:50 -07:00
bluetooth	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
bpf	bpf: introduce BPF_PROG_TEST_RUN command	2017-04-01 12:45:57 -07:00
bridge	net: break include loop netdevice.h, dsa.h, devlink.h	2017-03-28 22:46:04 -07:00
caif	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
can	can: initial support for network namespaces	2017-04-04 17:35:58 +02:00
ceph	libceph: force GFP_NOIO for socket allocations	2017-03-23 12:03:36 +01:00
core	gso: Support frag_list splitting with head_frag	2017-04-12 13:53:35 -04:00
dcb
dccp	dccp: fix memory leak during tear-down of unsuccessful connection request	2017-03-13 22:00:42 -07:00
decnet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-03-15 11:59:10 -07:00
dns_resolver	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
dsa	net: dsa: Factor bottom tag receive functions	2017-04-08 13:49:36 -07:00
ethernet	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2017-02-16 21:25:49 -05:00
hsr	net/hsr: use eth_hw_addr_random()	2017-02-21 13:25:22 -05:00
ieee802154	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
ife
ipv4	net: ipv4: fix multipath RTM_GETROUTE behavior when iif is given	2017-04-07 07:56:14 -07:00
ipv6	net: ipv6: Add support for RTM_DELNETCONF	2017-03-28 22:32:42 -07:00
ipx
irda	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
iucv	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
kcm	kcm: return immediately after copy_from_user() failure	2017-03-24 13:13:53 -07:00
key	xfrm: remove unused struct xfrm_mgr::id	2017-03-24 07:03:12 +01:00
l2tp	l2tp: define parameters of l2tp_tunnel_find*() as "const"	2017-04-12 10:44:02 -04:00
l3mdev
lapb
llc	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
mac80211	mac80211: unconditionally start new netdev queues with iTXQ support	2017-03-29 14:20:40 +02:00
mac802154	drivers: add explicit interrupt.h includes	2017-03-30 11:05:34 -07:00
mpls	net: mpls: Increase max number of labels for lwt encap	2017-04-01 20:21:44 -07:00
ncsi
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-04-06 08:24:51 -07:00
netlabel
netlink	netlink/diag: report flags for netlink sockets	2017-04-05 07:13:56 -07:00
netrom	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
nfc	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
openvswitch	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-04-06 08:24:51 -07:00
packet	net/packet: fix overflow in check for tp_reserve	2017-03-30 11:04:00 -07:00
phonet	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
psample
qrtr	soc: qcom: smd: Transition client drivers from smd to rpmsg	2017-03-28 17:58:07 -07:00
rds	rds: tcp: canonical connection order for all paths with index > 0	2017-04-02 19:41:00 -07:00
rfkill
rose	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
rxrpc	rxrpc: Trace client call connection	2017-04-06 11:10:41 +01:00
sched	net: sched: choke: remove some dead code	2017-04-05 06:53:42 -07:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-04-06 08:24:51 -07:00
smc	net/smc: do not use IB_SEND_INLINE together with mapped data	2017-04-11 23:01:14 -04:00
strparser	strparser: destroy workqueue on module exit	2017-03-03 20:43:26 -08:00
sunrpc	The restriction of NFSv4 to TCP went overboard and also broke the	2017-04-01 10:43:37 -07:00
switchdev
tipc	tipc: allow rdm/dgram socketpairs	2017-03-29 14:10:11 -07:00
unix	af_unix: Use designated initializers	2017-04-06 12:43:04 -07:00
vmw_vsock	VSOCK: remove unnecessary ternary operator on return value	2017-03-30 11:07:08 -07:00
wimax
wireless	cfg80211: check rdev resume callback only for registered wiphy	2017-03-29 09:11:29 +02:00
x25	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
xfrm	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2017-04-11 10:10:30 -04:00
compat.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-02-22 10:15:09 -08:00
Kconfig	bpf: make jited programs visible in traces	2017-02-17 13:40:05 -05:00
Makefile	bpf: introduce BPF_PROG_TEST_RUN command	2017-04-01 12:45:57 -07:00
socket.c	New kernel function to get IP overhead on a socket.	2017-04-06 13:43:31 -07:00
sysctl_net.c