linux/include
Ido Schimmel ce5c9c20d3 ipv4: Add a sysctl to control multipath hash fields
A subsequent patch will add a new multipath hash policy where the packet
fields used for multipath hash calculation are determined by user space.
This patch adds a sysctl that allows user space to set these fields.

The packet fields are represented using a bitmask and are common between
IPv4 and IPv6 to allow user space to use the same numbering across both
protocols. For example, to hash based on standard 5-tuple:

 # sysctl -w net.ipv4.fib_multipath_hash_fields=0x0037
 net.ipv4.fib_multipath_hash_fields = 0x0037

The kernel rejects unknown fields, for example:

 # sysctl -w net.ipv4.fib_multipath_hash_fields=0x1000
 sysctl: setting key "net.ipv4.fib_multipath_hash_fields": Invalid argument

More fields can be added in the future, if needed.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-18 13:27:32 -07:00
..
acpi Merge branches 'acpi-cppc', 'acpi-video' and 'acpi-utils' 2021-04-26 17:04:27 +02:00
asm-generic mm: remove xlate_dev_kmem_ptr() 2021-05-07 00:26:34 -07:00
clocksource ARM: platform support for Apple M1 2021-04-26 12:30:36 -07:00
crypto
drm
dt-bindings Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2021-05-06 23:37:55 -07:00
keys integrity-v5.13 2021-05-01 15:32:18 -07:00
kunit
kvm Merge branch 'kvm-arm64/kill_oprofile_dependency' into kvmarm-master/next 2021-04-22 13:41:49 +01:00
linux net: stmmac: Add callbacks for DWC xpcs Energy Efficient Ethernet 2021-05-17 15:53:58 -07:00
math-emu
media media updates for v5.13-rc1 2021-04-28 09:24:36 -07:00
memory
misc
net ipv4: Add a sysctl to control multipath hash fields 2021-05-18 13:27:32 -07:00
pcmcia
ras
rdma RDMA/restrack: Add support to get resource tracking for SRQ 2021-04-22 10:30:27 -03:00
scsi SCSI misc on 20210428 2021-04-28 17:22:10 -07:00
soc Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
sound ASoC: Updates for v5.13 2021-04-26 16:59:21 +02:00
target
trace tcp: add tracepoint for checksum errors 2021-05-14 15:26:03 -07:00
uapi net: bridge: mcast: add ip4+ip6 mcast router timers to mdb netlink 2021-05-13 14:04:31 -07:00
vdso
video
xen Merge branch 'akpm' (patches from Andrew) 2021-05-07 00:34:51 -07:00