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Magnus Karlsson b4b8faa1de samples/bpf: sample application and documentation for AF_XDP sockets 
This is a sample application for AF_XDP sockets. The application
supports three different modes of operation: rxdrop, txonly and l2fwd.

To show-case a simple round-robin load-balancing between a set of
sockets in an xskmap, set the RR_LB compile time define option to 1 in
"xdpsock.h".

v2: The entries variable was calculated twice in {umem,xq}_nb_avail.

Co-authored-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-05-03 15:55:25 -07:00
..
ABI
RTC for 4.17
2018-04-10 10:22:27 -07:00
accelerators
ocxl: Document the OCXL_IOCTL_GET_METADATA IOCTL
2018-03-02 13:02:15 +11:00
accounting
…
acpi
ACPI / LPIT: Add Low Power Idle Table (LPIT) support
2017-10-11 15:38:10 +02:00
admin-guide
ARM:
2018-04-09 11:42:31 -07:00
aoe
…
arm
MTD changes:
2018-04-06 12:15:41 -07:00
arm64
ARM:
2018-04-09 11:42:31 -07:00
auxdisplay
…
backlight
…
block
block, bfq: move debug blkio stats behind CONFIG_DEBUG_BLK_CGROUP
2017-11-14 20:13:33 -07:00
blockdev
SCSI misc on 20170907
2017-09-07 21:11:05 -07:00
bpf
bpf: Document sockmap '-target bpf' requirement for PROG_TYPE_SK_MSG
2018-04-23 23:42:21 +02:00
bus-devices
…
cdrom
Documentation/cdrom: fix German sharp s in LaTex
2018-03-08 19:35:29 -07:00
cgroup-v1
page cache: use xa_lock
2018-04-11 10:28:39 -07:00
cma
…
connector
…
console
…
core-api
textsearch: fix kernel-doc warnings and add kernel-api section
2018-04-16 18:53:13 -04:00
cpu-freq
cpufreq: Drop cpufreq_table_validate_and_show()
2018-04-10 08:40:45 +02:00
cpuidle
cpuidle: Add definition of residency to sysfs documentation
2018-04-09 13:44:37 +02:00
crypto
crypto: doc - clarify hash callbacks state machine
2018-03-31 01:33:02 +08:00
dev-tools
There's been a fair amount of activity in Documentation/ this time around:
2018-04-03 13:35:51 -07:00
device-mapper
dm verity: add 'check_at_most_once' option to only validate hashes once
2018-04-03 15:04:29 -04:00
devicetree
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-21 16:32:48 -04:00
doc-guide
doc-guide: kernel-doc: add comment about formatting verification
2018-02-23 08:06:15 -07:00
driver-api
MTD changes:
2018-04-06 12:15:41 -07:00
driver-model
serdev: Introduce devm_serdev_device_open()
2018-01-08 10:08:34 +00:00
early-userspace
…
EDID
…
extcon
…
fault-injection
Documentation: nvme: Documentation for nvme fault injection
2018-03-26 08:53:43 -06:00
fb
documentation: fb: update list of available compiled-in fonts
2017-11-08 03:39:52 -07:00
features
arch: remove obsolete architecture ports
2018-04-02 20:20:12 -07:00
filesystems
ipconfig: Write NTP server IPs to /proc/net/ipconfig/ntp_servers
2018-04-24 13:40:42 -04:00
firmware_class
…
fmc
…
fpga
fpga: mgr: separate getting/locking FPGA manager
2017-11-28 16:30:37 +01:00
gpio
Documentation: gpio: Move drivers-on-gpio.txt to driver-api
2018-03-23 04:22:29 +01:00
gpu
Linux 4.16-rc7
2018-03-28 14:30:41 +10:00
hid
Documentation: fix input related doc refs
2017-10-12 11:14:06 -06:00
hwmon
hwmon: (lm92) Add max6635 to lm92_id[]
2018-03-22 09:33:24 -07:00
i2c
i2c: i801: Add missing documentation entries for Braswell and Kaby Lake
2018-02-21 09:17:20 +01:00
ia64
ia64: doc: tweak whitespace for 'console=' parameter
2018-03-05 14:41:38 -08:00
ide
…
iio
iio: adc: New driver for Cirrus Logic EP93xx ADC
2017-07-25 19:56:23 +01:00
infiniband
Documentation/ABI: update infiniband sysfs interfaces
2018-02-23 08:18:33 -07:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2018-04-05 13:21:57 -07:00
ioctl
arch: remove tile port
2018-03-16 10:56:03 +01:00
isdn
Documentation/isdn: check and fix dead links ...
2018-03-26 12:31:13 -04:00
kbuild
Kconfig updates for v4.17
2018-04-03 16:28:01 -07:00
kdump
kexec/kdump: minor Documentation updates for arm64 and Image
2017-07-12 16:26:00 -07:00
kernel-hacking
Documentation: Fix misconversion of #if
2018-01-17 16:45:01 -07:00
laptops
Documentation: fix admin-guide doc refs
2017-10-12 11:13:28 -06:00
leds
Documentation: leds: Update 00-INDEX file
2017-10-23 20:17:03 +02:00
lightnvm
…
livepatch
livepatch: Allow to call a custom callback when freeing shadow variables
2018-04-17 13:42:48 +02:00
locking
Linux 4.16-rc2
2018-02-21 09:57:55 +01:00
m68k
…
maintainer
docs: Add an intro note to the maintainers handbook
2017-12-11 14:46:10 -07:00
md
raid5-ppl: PPL support for disks with write-back cache enabled
2018-01-15 14:29:42 -08:00
media
media: extended-controls.rst: transmitter -> receiver
2018-04-04 08:05:20 -04:00
memory-devices
…
mic
…
mips
Documentation: mips: Update AU1xxx_IDE Kconfig dependencies
2018-02-01 12:45:35 -07:00
misc-devices
…
mmc
…
mtd
mtd: spi-nor: add an API to restore the status of SPI flash chip
2017-12-13 00:36:00 +01:00
namespaces
…
netlabel
…
networking
samples/bpf: sample application and documentation for AF_XDP sockets
2018-05-03 15:55:25 -07:00
nfc
…
nios2
…
nvdimm
…
nvmem
NVMEM documentation fix: A minor typo
2017-08-24 13:31:58 -06:00
openrisc
Documentation: openrisc: Updates to README
2017-10-30 21:37:53 +09:00
parisc
…
PCI
PCI: Update location of pci.ids file
2018-02-22 15:00:43 -06:00
pcmcia
…
perf
drivers/bus: Move Arm CCN PMU driver
2018-03-06 17:26:15 +01:00
phy
…
platform
…
power
PM / hibernate: Make passing hibernate offsets more friendly
2018-03-30 12:01:20 +02:00
powerpc
powerpc updates for 4.13
2017-07-07 13:55:45 -07:00
pps
drivers/pps: aesthetic tweaks to PPS-related content
2017-09-08 18:26:51 -07:00
process
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-04-15 16:12:35 -07:00
pti
…
ptp
ptp: Fix documentation to match code.
2018-03-26 12:13:21 -04:00
rapidio
Documentation: rapidio: move sysfs interface to ABI
2018-02-23 08:25:45 -07:00
RCU
Merge branches 'cond_resched.2017.12.04a', 'dyntick.2017.11.28a', 'fixes.2017.12.11a', 'srbd.2017.12.05a' and 'torture.2017.12.11a' into HEAD
2017-12-11 09:21:58 -08:00
s390
vfio-ccw: update documentation
2018-03-01 17:32:14 +01:00
scheduler
sched/deadline: Fix the description of runtime accounting in the documentation
2017-11-16 09:00:35 +01:00
scsi
scsi: documentation: Obsolete documentation references
2018-03-21 18:34:20 -04:00
security
selinux: Update SELinux SCTP documentation
2018-03-20 16:26:15 -04:00
serial
…
sh
…
sound
sound updates for 4.15-rc1
2017-11-14 18:01:46 -08:00
sparc
sparc64: Add support for ADI (Application Data Integrity)
2018-03-18 07:38:48 -07:00
sphinx
Documentation/sphinx: Fix Directive import error
2018-03-09 10:46:14 -07:00
sphinx-static
docs RTD theme: code-block with line nos - lines and line numbers don't line up.
2017-07-17 13:48:45 -06:00
spi
…
sysctl
bpf, x86_32: add eBPF JIT compiler for ia32
2018-05-03 18:15:25 +02:00
target
…
thermal
thermal: Add cooling device's statistics in sysfs
2018-04-02 21:49:01 +08:00
timers
sched/isolation: Eliminate NO_HZ_FULL_ALL
2018-02-15 15:40:37 -08:00
trace
New features:
2018-04-10 11:27:30 -07:00
translations
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
2018-02-01 13:36:15 -08:00
usb
Documentation updates for 4.16. New stuff includes refcount_t
2018-01-31 19:25:25 -08:00
userspace-api
seccomp: Implement SECCOMP_RET_KILL_PROCESS action
2017-08-14 13:46:50 -07:00
virtual
KVM: trivial documentation cleanups
2018-03-28 22:47:06 +02:00
vm
page cache: use xa_lock
2018-04-11 10:28:39 -07:00
w1
Documentation updates for 4.16. New stuff includes refcount_t
2018-01-31 19:25:25 -08:00
watchdog
watchdog: remove bfin_wdt driver
2018-03-26 15:57:04 +02:00
wimax
…
x86
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-04-15 16:12:35 -07:00
xtensa
xtensa: add support for KASAN
2017-12-16 22:37:12 -08:00
.gitignore
…
00-INDEX
CRIS: Drop support for the CRIS port
2018-03-16 10:56:05 +01:00
atomic_bitops.txt
locking/atomic/bitops: Document and clarify ordering semantics for failed test_and_{}_bit()
2018-02-13 14:55:53 +01:00
atomic_t.txt
Documentation/locking/atomic: Finish the document...
2017-08-25 11:06:33 +02:00
bcache.txt
bcache.txt: standardize document format
2017-07-14 13:51:27 -06:00
bt8xxgpio.txt
bt8xxgpio.txt: standardize document format
2017-07-14 13:51:27 -06:00
btmrvl.txt
btmrvl.txt: standardize document format
2017-07-14 13:51:27 -06:00
bus-virt-phys-mapping.txt
bus-virt-phys-mapping.txt: standardize document format
2017-07-14 13:51:28 -06:00
cachetlb.txt
cachetlb.txt: standardize document format
2017-07-14 13:51:28 -06:00
cgroup-v2.txt
cgroup, docs: document the root cgroup behavior of cpu and io controllers
2018-01-16 08:07:09 -08:00
Changes
…
circular-buffers.txt
doc: De-emphasize smp_read_barrier_depends
2017-12-05 11:57:53 -08:00
clearing-warn-once.txt
kernel debug: support resetting WARN*_ONCE
2017-11-17 16:10:00 -08:00
clk.txt
Documentation: clk: enable lock is not held for clk_is_enabled API
2018-03-16 15:44:43 -07:00
CodingStyle
…
conf.py
docs: Remove "could not extract kernel version" warning
2017-12-11 15:20:04 -07:00
cpu-load.txt
cpu-load: standardize document format
2017-07-14 13:51:30 -06:00
cputopology.txt
cputopology.txt: standardize document format
2017-07-14 13:51:30 -06:00
crc32.txt
crc32.txt: standardize document format
2017-07-14 13:51:30 -06:00
dcdbas.txt
dcdbas.txt: standardize document format
2017-07-14 13:51:31 -06:00
debugging-modules.txt
…
debugging-via-ohci1394.txt
debugging-via-ohci1394.txt: standardize document format
2017-07-14 13:51:34 -06:00
dell_rbu.txt
dell_rbu.txt: standardize document format
2017-07-14 13:58:12 -06:00
digsig.txt
digsig.txt: standardize document format
2017-07-14 13:51:31 -06:00
DMA-API-HOWTO.txt
DMA-API-HOWTO.txt: standardize document format
2017-07-14 13:51:32 -06:00
DMA-API.txt
dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags
2017-09-01 11:59:17 +02:00
DMA-attributes.txt
DMA-attributes.txt: standardize document format
2017-07-14 13:51:33 -06:00
DMA-ISA-LPC.txt
DMA-ISA-LPC.txt: standardize document format
2017-07-14 13:51:33 -06:00
docutils.conf
…
dontdiff
Remove gperf usage from toolchain
2017-08-19 11:02:53 -07:00
efi-stub.txt
efi-stub.txt: standardize document format
2017-07-14 13:51:34 -06:00
eisa.txt
eisa.txt: standardize document format
2017-07-14 13:51:34 -06:00
flexible-arrays.txt
flexible-arrays.txt: standardize document format
2017-07-14 13:51:35 -06:00
futex-requeue-pi.txt
futex-requeue-pi.txt: standardize document format
2017-07-14 13:51:35 -06:00
gcc-plugins.txt
gcc-plugins.txt: standardize document format
2017-07-14 13:51:36 -06:00
highuid.txt
highuid.txt: standardize document format
2017-07-14 13:51:36 -06:00
hw_random.txt
hw_random.txt: standardize document format
2017-07-14 13:51:37 -06:00
hwspinlock.txt
hwspinlock.txt: standardize document format
2017-07-14 13:51:37 -06:00
index.rst
Documentation: add Linux tracing to Sphinx TOC tree
2018-03-07 10:22:53 -07:00
intel_txt.txt
intel_txt.txt: standardize document format
2017-07-14 13:51:38 -06:00
Intel-IOMMU.txt
Intel-IOMMU.txt: standardize document format
2017-07-14 13:51:38 -06:00
io_ordering.txt
io_ordering.txt: standardize document format
2017-07-14 13:51:39 -06:00
io-mapping.txt
io-mapping.txt: standardize document format
2017-07-14 13:51:38 -06:00
iostats.txt
iostats.txt: update it to cover recent Kernels
2017-07-14 13:51:40 -06:00
IPMI.txt
ipmi: Make IPMI panic strings always available
2017-09-27 16:03:45 -05:00
IRQ-affinity.txt
IRQ-affinity.txt: standardize document format
2017-07-14 13:51:41 -06:00
IRQ-domain.txt
irqdomain: Kill CONFIG_IRQ_DOMAIN_DEBUG
2018-01-24 12:32:58 +01:00
IRQ.txt
IRQ.txt: add a markup for its title
2017-07-14 13:51:42 -06:00
irqflags-tracing.txt
irqflags-tracing.txt: standardize document format
2017-07-14 13:51:42 -06:00
isa.txt
isa.txt: standardize document format
2017-07-14 13:51:43 -06:00
isapnp.txt
isapnp.txt: promote title level
2017-07-14 13:51:43 -06:00
kernel-per-CPU-kthreads.txt
kernel-per-CPU-kthreads.txt: standardize document format
2017-07-14 13:51:43 -06:00
kobject.txt
kobject.txt: standardize document format
2017-07-14 13:51:44 -06:00
kprobes.txt
kprobes/docs: Remove jprobes related documents
2017-10-20 11:02:55 +02:00
kref.txt
kref.txt: standardize document format
2017-07-14 13:51:45 -06:00
ldm.txt
ldm.txt: standardize document format
2017-07-14 13:51:45 -06:00
lockup-watchdogs.txt
lockup-watchdogs.txt: standardize document format
2017-07-14 13:51:46 -06:00
logo.gif
…
logo.txt
…
lsm.txt
…
lzo.txt
lzo.txt: standardize document format
2017-07-14 13:51:46 -06:00
mailbox.txt
mailbox.txt: standardize document format
2017-07-14 13:51:47 -06:00
Makefile
Documentation: add script and build target to check for broken file references
2017-10-12 11:07:42 -06:00
memory-barriers.txt
locking/memory-barriers: De-emphasize smp_read_barrier_depends() some more
2018-03-10 10:22:22 +01:00
memory-hotplug.txt
memory-hotplug.txt: standardize document format
2017-07-14 13:57:53 -06:00
men-chameleon-bus.txt
men-chameleon-bus.txt: standardize document format
2017-07-14 13:57:54 -06:00
nommu-mmap.txt
nommu-mmap.txt: don't use all upper case on titles
2017-07-14 13:57:55 -06:00
ntb.txt
This series converts a number of top-level documents to the RST format
2017-07-15 12:58:58 -07:00
numastat.txt
numastat.txt: standardize document format
2017-07-14 13:57:56 -06:00
padata.txt
padata.txt: standardize document format
2017-07-14 13:57:56 -06:00
parport-lowlevel.txt
parport-lowlevel.txt: standardize document format
2017-07-14 13:57:57 -06:00
percpu-rw-semaphore.txt
percpu-rw-semaphore.txt: standardize document format
2017-07-14 13:57:58 -06:00
phy.txt
phy.txt: standardize document format
2017-07-14 13:57:58 -06:00
pi-futex.txt
Documentation: fix locking rt-mutex doc refs
2017-10-19 12:56:44 -06:00
pnp.txt
pnp.txt: standardize document format
2017-07-14 13:57:59 -06:00
preempt-locking.txt
preempt-locking.txt: standardize document format
2017-07-14 13:58:00 -06:00
pwm.txt
…
rbtree.txt
rbtree: cache leftmost node internally
2017-09-08 18:26:48 -07:00
remoteproc.txt
remoteproc.txt: standardize document format
2017-07-14 13:58:02 -06:00
rfkill.txt
rfkill.txt: standardize document format
2017-07-14 13:58:02 -06:00
robust-futex-ABI.txt
robust-futex-ABI.txt: standardize document format
2017-07-14 13:58:03 -06:00
robust-futexes.txt
robust-futexes.txt: standardize document format
2017-07-14 13:58:03 -06:00
rpmsg.txt
rpmsg.txt: standardize document format
2017-07-14 13:58:04 -06:00
rtc.txt
Documentation: rtc: move iotcl interface documentation to ABI
2018-01-12 00:20:41 +01:00
SAK.txt
SAK.txt: standardize document format
2017-07-14 13:58:04 -06:00
sgi-ioc4.txt
sgi-ioc4.txt: standardize document format
2017-07-14 13:58:05 -06:00
siphash.txt
siphash.txt: standardize document format
2017-07-14 13:58:06 -06:00
SM501.txt
SM501.txt: standardize document format
2017-07-14 13:58:06 -06:00
smsc_ece1099.txt
smsc_ece1099.txt: standardize document format
2017-07-14 13:58:07 -06:00
speculation.txt
Documentation: Document array_index_nospec
2018-01-30 21:54:28 +01:00
static-keys.txt
jump_label: Provide hotplug context variants
2017-08-10 12:28:59 +02:00
SubmittingPatches
…
svga.txt
documentation/svga.txt: update outdated file
2017-11-20 10:45:50 -07:00
switchtec.txt
NTB: switchtec_ntb: Update switchtec documentation with notes for NTB
2017-11-18 20:37:13 -05:00
sync_file.txt
…
tee.txt
tee.txt: standardize document format
2017-07-14 13:58:14 -06:00
this_cpu_ops.txt
this_cpu_ops.txt: standardize document format
2017-07-14 13:58:08 -06:00
unaligned-memory-access.txt
unaligned-memory-access.txt: standardize document format
2017-07-14 13:58:09 -06:00
vfio-mediated-device.txt
vfio-mediated-device.txt: standardize document format
2017-07-14 13:58:10 -06:00
vfio.txt
vfio.txt: standardize document format
2017-07-14 13:58:10 -06:00
video-output.txt
…
xillybus.txt
xillybus.txt: standardize document format
2017-07-14 13:58:11 -06:00
xz.txt
xz.txt: standardize document format
2017-07-14 13:58:11 -06:00
zorro.txt
zorro.txt: standardize document format
2017-07-14 13:58:12 -06:00