Jason Wang fc72d1d54d tuntap: XDP transmission ... This patch implements XDP transmission for TAP. Since we can't create new queues for TAP during XDP set, exist ptr_ring was reused for queuing XDP buffers. To differ xdp_buff from sk_buff, TUN_XDP_FLAG (0x1UL) was encoded into lowest bit of xpd_buff pointer during ptr_ring_produce, and was decoded during consuming. XDP metadata was stored in the headroom of the packet which should work in most of cases since driver usually reserve enough headroom. Very minor changes were done for vhost_net: it just need to peek the length depends on the type of pointer. Tests were done on two Intel E5-2630 2.40GHz machines connected back to back through two 82599ES. Traffic were generated/received through MoonGen/testpmd(rxonly). It reports ~20% improvements when xdp_redirect_map is doing redirection from ixgbe to TAP (from 2.50Mpps to 3.05Mpps) Cc: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-01-09 10:57:08 -05:00
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appletalk	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
arcnet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
bonding	net: bonding: Replace mac address parsing	2017-12-20 12:47:29 -05:00
caif	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
can	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-09 10:37:00 -05:00
cris	drivers/net: cris: Convert timers to use timer_setup()	2017-11-21 15:46:44 -08:00
dsa	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-09 10:37:00 -05:00
ethernet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-09 10:37:00 -05:00
fddi	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
fjes	…
hamradio	treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts	2017-11-21 16:35:54 -08:00
hippi	hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close	2017-12-13 14:52:57 -05:00
hyperv	hv_netvsc: empty current transmit aggregation if flow blocked	2017-12-13 15:57:39 -05:00
ieee802154	net: ieee802154: adf7242: Rework IRQ and packet handling	2017-11-29 16:49:41 +01:00
ipvlan	ipvlan: remove excessive packet scrubbing	2017-12-15 11:36:53 -05:00
netdevsim	bpf: offload: allow netdev to disappear while verifier is running	2017-12-31 16:12:23 +01:00
phy	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-09 10:37:00 -05:00
plip	net: plip: mark expected switch fall-throughs	2017-11-05 22:19:00 +09:00
ppp	ppp: exit_net cleanup checks added	2017-11-14 15:46:17 +09:00
slip	slip: sl_alloc(): remove unused parameter "dev_t line"	2017-12-08 14:41:02 -05:00
team	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
usb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-09 10:37:00 -05:00
vmxnet3	vmxnet3: increase default rx ring sizes	2017-11-30 14:06:58 -05:00
wan	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-29 13:10:25 -08:00
wimax	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
wireless	We have things all over the place, no point listing them.	2018-01-04 14:33:29 -05:00
xen-netback	xen-netback: Fix logging message with spurious period after newline	2017-12-06 15:10:32 -05:00
Kconfig	netdevsim: add software driver for testing offloads	2017-12-03 00:27:57 +01:00
LICENSE.SRC	…
Makefile	netdevsim: add software driver for testing offloads	2017-12-03 00:27:57 +01:00
Space.c	…
dummy.c	net: dummy: remove fake SR-IOV functionality	2017-12-03 00:27:58 +01:00
eql.c	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
geneve.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-09 10:37:00 -05:00
gtp.c	…
ifb.c	…
loopback.c	…
macsec.c	genetlink: fix genlmsg_nlhdr()	2017-11-16 10:49:00 +09:00
macvlan.c	macvlan: Fix one possible double free	2018-01-02 13:30:14 -05:00
macvtap.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-10-30 21:09:24 +09:00
mdio.c	…
mii.c	…
netconsole.c	…
nlmon.c	…
ntb_netdev.c	drivers/net: ntb_netdev: Convert timers to use timer_setup()	2017-11-01 12:38:45 +09:00
rionet.c	…
sb1000.c	…
sungem_phy.c	…
tap.c	tun/tap: use ptr_ring instead of skb_array	2018-01-09 10:56:10 -05:00
thunderbolt.c	net: thunderbolt: Stop using zero to mean no valid DMA mapping	2017-11-25 23:56:02 +09:00
tun.c	tuntap: XDP transmission	2018-01-09 10:57:08 -05:00
veth.c	veth: set peer GSO values	2017-12-08 14:22:59 -05:00
virtio_net.c	virtio_net: setup xdp_rxq_info	2018-01-05 15:21:22 -08:00
vrf.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
vsockmon.c	…
vxlan.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-12-22 11:16:31 -05:00
xen-netfront.c	xen-netfront: enable device after manual module load	2018-01-08 14:17:03 -05:00