Tom Herbert 82a584b7cd ipv6: Flow label state ranges ... This patch divides the IPv6 flow label space into two ranges: 0-7ffff is reserved for flow label manager, 80000-fffff will be used for creating auto flow labels (per RFC6438). This only affects how labels are set on transmit, it does not affect receive. This range split can be disbaled by systcl. Background: IPv6 flow labels have been an unmitigated disappointment thus far in the lifetime of IPv6. Support in HW devices to use them for ECMP is lacking, and OSes don't turn them on by default. If we had these we could get much better hashing in IPv6 networks without resorting to DPI, possibly eliminating some of the motivations to to define new encaps in UDP just for getting ECMP. Unfortunately, the initial specfications of IPv6 did not clarify how they are to be used. There has always been a vague concept that these can be used for ECMP, flow hashing, etc. and we do now have a good standard how to this in RFC6438. The problem is that flow labels can be either stateful or stateless (as in RFC6438), and we are presented with the possibility that a stateless label may collide with a stateful one. Attempts to split the flow label space were rejected in IETF. When we added support in Linux for RFC6438, we could not turn on flow labels by default due to this conflict. This patch splits the flow label space and should give us a path to enabling auto flow labels by default for all IPv6 packets. This is an API change so we need to consider compatibility with existing deployment. The stateful range is chosen to be the lower values in hopes that most uses would have chosen small numbers. Once we resolve the stateless/stateful issue, we can proceed to look at enabling RFC6438 flow labels by default (starting with scaled testing). Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-05-03 21:58:01 -04:00
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ABI	platform-drivers-x86 for 4.1	2015-04-26 13:44:46 -07:00
DocBook	Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus	2015-04-21 09:44:55 -03:00
EDID	…
PCI	The documentation tree update for 4.1. Numerous fixes, the overdue removal	2015-04-18 11:10:49 -04:00
RCU	Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD	2015-01-15 23:34:34 -08:00
accounting	Documentation: use subdir-y to avoid unnecessary built-in.o files	2014-09-26 11:02:55 +02:00
acpi	Power management and ACPI updates for v4.1-rc1	2015-04-14 20:21:54 -07:00
aoe	…
arm	ARM: SoC multiplatform code changes for v4.1	2015-04-22 09:20:15 -07:00
arm64	ARM64 / ACPI: additions of ACPI documentation for arm64	2015-03-26 15:13:09 +00:00
auxdisplay	Documentation: use subdir-y to avoid unnecessary built-in.o files	2014-09-26 11:02:55 +02:00
backlight	…
blackfin	Documentation: blackfin: Makefile: Typo building issue	2015-04-11 15:19:31 +02:00
block	Documentation: Remove mentioning of block barriers	2015-03-20 07:41:56 -06:00
blockdev	Merge branch 'for-4.1/drivers' of git://git.kernel.dk/linux-block	2015-04-16 22:05:27 -04:00
bus-devices	…
cdrom	…
cgroups	The documentation tree update for 4.1. Numerous fixes, the overdue removal	2015-04-18 11:10:49 -04:00
cma	cma: debug: document new debugfs interface	2015-04-14 16:49:00 -07:00
connector	…
console	…
cpu-freq	intel_pstate: Add num_pstates to sysfs	2015-01-30 01:52:17 +01:00
cpuidle	…
cris	…
crypto	crypto: doc - AEAD / RNG AF_ALG interface	2015-03-09 21:06:18 +11:00
development-process	Documentation: remove outdated references to the linux-next wiki	2014-10-28 09:06:11 -04:00
device-mapper	dm crypt: update URLs to new cryptsetup project page	2015-04-15 12:10:24 -04:00
devicetree	CRIS changes for 4.1	2015-04-26 13:31:05 -07:00
dmaengine	Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma	2015-02-18 08:49:20 -08:00
driver-model	Char/Misc driver patches for 4.1-rc1	2015-04-21 09:42:58 -07:00
dvb	[media] get_dvb_firmware: Update firmware of ITEtech IT9135	2014-09-21 17:03:04 -03:00
early-userspace	…
extcon	…
fault-injection	…
fb	…
filesystems	xfs: update for 4.1-rc1	2015-04-24 07:08:41 -07:00
firmware_class	…
fmc	…
frv	…
gpio	The documentation tree update for 4.1. Numerous fixes, the overdue removal	2015-04-18 11:10:49 -04:00
hid	HID: sensor: Update document for custom sensor	2015-04-10 22:22:56 +02:00
hwmon	hwmon: (it87) Add support for IT8620E	2015-04-05 06:01:00 -07:00
i2c	i2c: slave: add documentation for i2c-slave-eeprom	2015-03-27 16:53:39 +01:00
ia64	virtual: Documentation: simplify and generalize paravirt_ops.txt	2015-02-13 17:15:44 +10:30
ide	…
infiniband	…
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-04-21 12:54:08 -07:00
ioctl	platform/chrome: Add Chrome OS EC userspace device interface	2015-02-26 15:45:06 -08:00
isdn	…
ja_JP	…
kbuild	Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2015-02-19 10:31:37 -08:00
kdump	kernel: add panic_on_warn	2014-12-10 17:41:10 -08:00
ko_KR	…
laptops	thinkpad_acpi: Add adaptive_kbd_mode sysfs attr	2015-03-03 09:00:08 -08:00
leds	Documentation: leds: Add description of LED Flash class extension	2015-03-09 17:18:00 -07:00
locking	Documentation changes for 3.20	2015-02-11 13:03:11 -08:00
m68k	…
memory-devices	…
metag	…
mic	Documentation: Build mic/mpssd only for x86_64	2014-12-05 11:18:36 -05:00
mips	Documentation: au1xxx-ide.c has moved	2014-08-26 09:35:53 +02:00
misc-devices	Documentation/misc-devices/mei: Fix indentation of embedded code.	2015-01-29 12:56:20 -07:00
mmc	…
mn10300	…
mtd	…
namespaces	…
netlabel	…
networking	ipv6: Flow label state ranges	2015-05-03 21:58:01 -04:00
nfc	…
nios2	Documentation: Add documentation for Nios2 architecture	2014-12-08 12:56:06 +08:00
parisc	…
pcmcia	Documentation: use subdir-y to avoid unnecessary built-in.o files	2014-09-26 11:02:55 +02:00
phy	…
platform	…
power	Power management and ACPI updates for v4.1-rc1	2015-04-14 20:21:54 -07:00
powerpc	Merge branch 'next-sriov' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc into next	2015-04-14 09:29:23 +10:00
pps	…
prctl	Documentation: Restrict TSC test code to x86	2014-10-28 08:46:27 -04:00
pti	…
ptp	ptp: restore the makefile for building the test program.	2014-10-24 16:07:10 -04:00
rapidio	…
s390	s390/docs: Remove section about script debugging from Debugging390.txt	2015-01-15 11:11:14 +01:00
scheduler	docs/completion.txt: Various tweaks and corrections	2015-04-04 15:20:26 +02:00
scsi	genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely	2015-03-05 20:53:06 +01:00
security	Smack: Updates for Smack documentation	2015-03-31 10:35:31 -07:00
serial	serial: Fix locking for uart driver set_termios() method	2014-11-05 18:53:54 -08:00
sh	…
sound	ASoC: Updates for v4.1	2015-04-13 14:14:29 +02:00
spi	Documentation/spi/spidev_test.c: fix warning	2015-04-17 09:04:12 -04:00
sysctl	Doc/sysctl/kernel.txt: document threads-max	2015-04-17 09:04:07 -04:00
target	target: Version 2 of TCMU ABI	2015-04-19 22:40:26 -07:00
thermal	Documentation: thermal: document of_cpufreq_cooling_register()	2015-01-06 14:39:17 -04:00
timers	documentation: Update NO_HZ_FULL interaction with POSIX timers	2015-02-26 11:57:29 -08:00
tpm	…
trace	coresight: Correcting documentation typographical error	2015-04-03 16:17:03 +02:00
usb	usb: patches for v4.1 merge window	2015-03-24 22:57:49 +01:00
vDSO	vdso: don't require 64-bit math in standalone test	2014-10-25 10:53:44 -04:00
video4linux	[media] media/Documentation: New flag EXECUTE_ON_WRITE	2015-04-08 06:35:16 -03:00
virtual	KVM: PPC: Book3S HV: Add fast real-mode H_RANDOM implementation.	2015-04-21 15:21:29 +02:00
vm	The documentation tree update for 4.1. Numerous fixes, the overdue removal	2015-04-18 11:10:49 -04:00
w1	…
watchdog	Documentation: use subdir-y to avoid unnecessary built-in.o files	2014-09-26 11:02:55 +02:00
wimax	…
x86	x86/mm/KASLR: Propagate KASLR status to kernel proper	2015-04-03 15:26:15 +02:00
xtensa	…
zh_CN	Documentation:Update Documentation/zh_CN/arm64/memory.txt	2015-04-04 15:20:26 +02:00
00-INDEX	Update of Documentation/dmaengine/00-INDEX	2014-12-29 15:28:24 -07:00
BUG-HUNTING	…
Changes	Documentation: GNU is frequently spelled Gnu	2014-12-29 15:33:17 -07:00
CodeOfConflict	Code of Conflict	2015-02-27 11:44:24 -08:00
CodingStyle	The documentation tree update for 4.1. Numerous fixes, the overdue removal	2015-04-18 11:10:49 -04:00
DMA-API-HOWTO.txt	Documentation: correct parameter error for dma_mapping_error	2014-09-26 11:22:29 +02:00
DMA-API.txt	…
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
HOWTO	Documentation: remove outdated references to the linux-next wiki	2014-10-28 09:06:11 -04:00
IPMI.txt	ipmi: Add SMBus interface driver (SSIF)	2014-12-11 15:04:11 -06:00
IRQ-affinity.txt	…
IRQ-domain.txt	IRQCHIP: Update docs regarding irq_domain_add_tree()	2015-04-01 17:21:35 +02:00
IRQ.txt	…
Intel-IOMMU.txt	…
Makefile	Documentation: Remove ZBOOT MMC/SDHI utility and docs	2015-02-24 06:45:25 +09:00
ManagementStyle	…
SAK.txt	…
SM501.txt	…
SecurityBugs	…
SubmitChecklist	…
SubmittingDrivers	…
SubmittingPatches	checkpatch, SubmittingPatches: suggest line wrapping commit messages at 75 columns	2015-04-17 09:03:57 -04:00
VGA-softcursor.txt	…
applying-patches.txt	Documentation: change "&" to "and" in Documentation/applying-patches.txt	2014-09-26 11:10:11 +02:00
assoc_array.txt	…
atomic_ops.txt	documentation: Clarify memory-barrier semantics of atomic operations	2015-02-26 11:57:31 -08:00
bad_memory.txt	…
basic_profiling.txt	…
bcache.txt	…
binfmt_misc.txt	binfmt_misc: touch up documentation a bit	2014-10-14 02:18:16 +02:00
braille-console.txt	…
bt8xxgpio.txt	…
btmrvl.txt	…
bus-virt-phys-mapping.txt	…
cachetlb.txt	rmap: drop support of non-linear mappings	2015-02-10 14:30:31 -08:00
circular-buffers.txt	…
clk.txt	clk: Add rate constraints to clocks	2015-02-02 14:23:42 -08:00
coccinelle.txt	…
cpu-hotplug.txt	cpumask: fix cpu-hotplug documentation	2015-03-05 13:37:01 +10:30
cpu-load.txt	…
cputopology.txt	…
crc32.txt	…
dcdbas.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	…
dell_rbu.txt	…
devices.txt	…
digsig.txt	…
dma-buf-sharing.txt	dma-buf: cleanup dma_buf_export() to make it easily extensible	2015-04-21 14:47:16 +05:30
dontdiff	…
dynamic-debug-howto.txt	…
edac.txt	…
efi-stub.txt	…
eisa.txt	…
email-clients.txt	Documentation/email-clients.txt: Fix one grammar mistake, add extra info about TB	2015-03-20 07:41:55 -06:00
flexible-arrays.txt	…
futex-requeue-pi.txt	doc: Fix misnamed FUTEX_CMP_REQUEUE_PI op constants	2015-01-19 12:05:32 +01:00
gcov.txt	…
gdb-kernel-debugging.txt	scripts/gdb: add basic documentation	2015-02-17 14:34:54 -08:00
highuid.txt	…
hsi.txt	…
hw_random.txt	…
hwspinlock.txt	…
init.txt	…
initrd.txt	…
intel_txt.txt	…
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	…
irqflags-tracing.txt	…
isapnp.txt	…
java.txt	…
kasan.txt	kasan: enable instrumentation of global variables	2015-02-13 21:21:42 -08:00
kernel-doc-nano-HOWTO.txt	…
kernel-docs.txt	…
kernel-parameters.txt	uas: Add US_FL_MAX_SECTORS_240 flag	2015-04-28 12:48:57 +02:00
kernel-per-CPU-kthreads.txt	documentation: Update per-CPU kthreads documentation	2015-02-26 11:57:30 -08:00
kmemcheck.txt	Documentation: update the CONFIG_DEBUG_PAGEALLOC description	2015-03-20 07:41:55 -06:00
kmemleak.txt	Documentation: Add CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF case	2014-10-24 13:59:03 -04:00
kobject.txt	kobject: grammar fix	2014-12-08 09:07:11 -05:00
kprobes.txt	kprobes: Update Documentation/kprobes.txt	2015-03-20 07:41:55 -06:00
kref.txt	…
kselftest.txt	kselftest: Move the docs to the Documentation dir	2014-11-24 10:49:54 -07:00
ldm.txt	…
local_ops.txt	percpu: update local_ops.txt to reflect this_cpu operations	2014-12-13 12:42:53 -08:00
lockup-watchdogs.txt	lockup-watchdogs: Fix a typo	2014-08-26 09:35:52 +02:00
logo.gif	…
logo.txt	…
lzo.txt	Documentation: lzo: document part of the encoding	2014-09-28 11:08:00 +02:00
magic-number.txt	…
mailbox.txt	Documentation: Fix a typo in mailbox.txt	2014-11-03 11:54:50 -05:00
md-cluster.txt	md-cluster: Design Documentation	2015-02-23 07:16:46 -06:00
md.txt	…
media-framework.txt	…
memory-barriers.txt	The documentation tree update for 4.1. Numerous fixes, the overdue removal	2015-04-18 11:10:49 -04:00
memory-hotplug.txt	mem-hotplug: fix typo in Documentation/memory-hotplug.txt	2015-03-20 07:41:55 -06:00
module-signing.txt	modsign: change default key details	2015-04-30 09:35:41 -07:00
mono.txt	…
nommu-mmap.txt	fs: introduce f_op->mmap_capabilities for nommu mmap support	2015-01-20 14:02:58 -07:00
numastat.txt	…
oops-tracing.txt	livepatch: kernel: add TAINT_LIVEPATCH	2014-12-22 15:40:48 +01:00
padata.txt	…
parport-lowlevel.txt	…
parport.txt	…
percpu-rw-semaphore.txt	…
phy.txt	phy: improved lookup method	2014-11-21 19:48:50 +05:30
pi-futex.txt	…
pinctrl.txt	pinctrl: fix example .get_group_pins implementation signature	2015-03-18 02:02:20 +01:00
pnp.txt	…
preempt-locking.txt	…
printk-formats.txt	The documentation tree update for 4.1. Numerous fixes, the overdue removal	2015-04-18 11:10:49 -04:00
pwm.txt	…
ramoops.txt	pstore-ram: Allow optional mapping with pgprot_noncached	2014-12-11 13:38:31 -08:00
rbtree.txt	…
remoteproc.txt	…
rfkill.txt	rfkill: document rfkill module parameters	2015-01-09 23:22:12 +01:00
robust-futex-ABI.txt	…
robust-futexes.txt	…
rpmsg.txt	…
rtc.txt	Documentation, split up rtc.txt into documentation and test file	2015-03-24 22:01:58 -06:00
serial-console.txt	…
sgi-ioc4.txt	…
smsc_ece1099.txt	…
sparse.txt	…
stable_api_nonsense.txt	…
stable_kernel_rules.txt	stable_kernel_rules: Add clause about specification of kernel versions to patch.	2015-03-26 23:52:24 +01:00
static-keys.txt	…
svga.txt	…
sysfs-rules.txt	Documentation/sysfs-rules.txt: Add device attribute error code documentation	2014-09-19 14:44:51 -07:00
sysrq.txt	…
this_cpu_ops.txt	Docs: this_cpu_ops: remove redundant add forms	2014-09-26 11:03:00 +02:00
unaligned-memory-access.txt	…
unicode.txt	…
unshare.txt	…
vfio.txt	…
vgaarbiter.txt	…
video-output.txt	…
vme_api.txt	…
volatile-considered-harmful.txt	…
workqueue.txt	…
xillybus.txt	xillybus: Move out of staging	2014-09-23 23:44:16 -07:00
xz.txt	…
zorro.txt	…