Magnus Karlsson 1328dcddbd i40e: add AF_XDP zero-copy Tx support ... This patch adds zero-copy Tx support for AF_XDP sockets. It implements the ndo_xsk_async_xmit netdev ndo and performs all the Tx logic from a NAPI context. This means pulling egress packets from the Tx ring, placing the frames on the NIC HW descriptor ring and completing sent frames back to the application via the completion ring. The regular XDP Tx ring is used for AF_XDP as well. This rationale for this is as follows: XDP_REDIRECT guarantees mutual exclusion between different NAPI contexts based on CPU id. In other words, a netdev can XDP_REDIRECT to another netdev with a different NAPI context, since the operation is bound to a specific core and each core has its own hardware ring. As the AF_XDP Tx action is running in the same NAPI context and using the same ring, it will also be protected from XDP_REDIRECT actions with the exact same mechanism. As with AF_XDP Rx, all AF_XDP Tx specific functions are added to i40e_xsk.c. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2018-08-29 12:25:53 -07:00
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accessibility
acpi	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
amba
android
ata	Merge branch 'for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2018-08-24 13:20:33 -07:00
atm
auxdisplay
base
bcma
block	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
bluetooth	Bluetooth: mediatek: Fix memory leak	2018-08-21 16:56:20 +02:00
bus	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
cdrom
char	RTC for 4.19	2018-08-20 16:30:27 -07:00
clk	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
clocksource	RISC-V Updates for the 4.19 Merge Window	2018-08-19 09:56:38 -07:00
connector
cpufreq	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
cpuidle	More power management updates for 4.19-rc1	2018-08-22 07:42:36 -07:00
crypto	Merge branch 'akpm' (patches from Andrew)	2018-08-23 19:20:12 -07:00
dax	libnvdimm-for-4.19_dax-memory-failure	2018-08-25 18:43:59 -07:00
dca
devfreq
dio
dma	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
dma-buf
edac
eisa
extcon
firewire
firmware	fbdev changes for v4.19:	2018-08-23 15:44:58 -07:00
fmc
fpga
fsi
gnss
gpio	- New Drivers	2018-08-20 15:38:44 -07:00
gpu	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2018-08-20 15:59:01 -07:00
hsi
hv
hwmon	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
hwspinlock
hwtracing	drivers/hwtracing/intel_th/msu.c: change return type to vm_fault_t	2018-08-23 18:48:43 -07:00
i2c	i2c: don't use any __deprecated handling anymore	2018-08-24 17:26:43 +02:00
ide	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide	2018-08-22 07:40:33 -07:00
idle
iio	treewide: convert ISO_8859-1 text comments to utf-8	2018-08-23 18:48:43 -07:00
infiniband	Second merge window update	2018-08-23 15:34:48 -07:00
input	ARM: 32-bit SoC platform updates	2018-08-23 13:44:43 -07:00
iommu	ARM: SoC: late updates	2018-08-25 14:12:36 -07:00
ipack
irqchip	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-08-26 09:55:28 -07:00
isdn
leds
lightnvm
macintosh	macintosh: therm_windtunnel: drop using attach_adapter	2018-08-24 14:42:42 +02:00
mailbox
mcb
md	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
media	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
memory	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
memstick
message
mfd	Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2018-08-21 17:40:46 -07:00
misc	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
mmc
mtd	This pull request contains updates for both UBI and UBIFS:	2018-08-23 15:58:04 -07:00
mux
net	i40e: add AF_XDP zero-copy Tx support	2018-08-29 12:25:53 -07:00
nfc
ntb
nubus
nvdimm	libnvdimm-for-4.19_dax-memory-failure	2018-08-25 18:43:59 -07:00
nvme
nvmem
of
opp
oprofile
parisc
parport
pci	Merge branch 'akpm' (patches from Andrew)	2018-08-22 12:34:08 -07:00
pcmcia
perf
phy
pinctrl	- New Drivers	2018-08-20 15:38:44 -07:00
platform	platform-drivers-x86 for v4.19-1	2018-08-22 14:14:15 -07:00
pnp
power	treewide: convert ISO_8859-1 text comments to utf-8	2018-08-23 18:48:43 -07:00
powercap
pps
ps3
ptp
pwm	pwm: mediatek: Add MT7628 support	2018-08-20 11:36:07 +02:00
rapidio	drivers/rapidio/devices/rio_mport_cdev.c: remove redundant pointer md	2018-08-22 10:52:51 -07:00
ras
regulator	- New Drivers	2018-08-20 15:38:44 -07:00
remoteproc
reset	ARM: SoC: late updates	2018-08-25 14:12:36 -07:00
rpmsg
rtc	RTC for 4.19	2018-08-20 16:30:27 -07:00
s390	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
sbus
scsi	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
sfi
sh
siox
slimbus
sn
soc	ARM: Device-tree updates	2018-08-23 14:02:22 -07:00
soundwire
spi
spmi
ssb
staging	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
target	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
tc
tee	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
thermal	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2018-08-24 13:03:51 -07:00
thunderbolt
tty	powerpc fixes for 4.19 #2	2018-08-24 09:34:23 -07:00
uio
usb	ARM: SoC driver updates	2018-08-23 13:52:46 -07:00
uwb
vfio
vhost	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-08-27 11:59:39 -07:00
video	fbdev changes for v4.19:	2018-08-23 15:44:58 -07:00
virt
virtio	virtio, vhost: fixes, tweaks	2018-08-24 08:45:19 -07:00
visorbus
vlynq
vme
w1	power supply and reset changes for the v4.19 series	2018-08-21 18:06:27 -07:00
watchdog	include/linux/compiler*.h: make compiler-*.h mutually exclusive	2018-08-22 17:31:34 -07:00
xen	xen: fixes and cleanups for 4.19-rc1, second round	2018-08-23 14:52:23 -07:00
zorro
Kconfig
Makefile