linux/arch/s390
Tom Herbert a87cb3e48e net: Facility to report route quality of connected sockets
This patch add the SO_CNX_ADVICE socket option (setsockopt only). The
purpose is to allow an application to give feedback to the kernel about
the quality of the network path for a connected socket. The value
argument indicates the type of quality report. For this initial patch
the only supported advice is a value of 1 which indicates "bad path,
please reroute"-- the action taken by the kernel is to call
dst_negative_advice which will attempt to choose a different ECMP route,
reset the TX hash for flow label and UDP source port in encapsulation,
etc.

This facility should be useful for connected UDP sockets where only the
application can provide any feedback about path quality. It could also
be useful for TCP applications that have additional knowledge about the
path outside of the normal TCP control loop.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-25 22:01:22 -05:00
..
appldata s390: appldata: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
boot s390/boot/decompression: disable floating point in decompressor 2015-09-29 14:45:10 +02:00
configs s390/configs: update default configurations 2016-01-11 13:01:28 +01:00
crypto crypto: s390/sha - replace raw value by their coresponding define 2015-10-15 21:05:11 +08:00
hypfs wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
include net: Facility to report route quality of connected sockets 2016-02-25 22:01:22 -05:00
kernel s390/diag: avoid lockdep recursion 2016-02-11 13:05:56 +01:00
kvm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2016-01-29 16:05:18 -08:00
lib s390/spinlock: do not yield to a CPU in udelay/mdelay 2015-11-27 09:24:18 +01:00
mm s390/maccess: reduce stnsm instructions 2016-02-17 09:05:04 +01:00
net bpf: move clearing of A/X into classic to eBPF migration prologue 2015-12-18 16:04:51 -05:00
numa s390/numa: move numa_init_late() from device to arch_initcall 2016-01-26 12:45:24 +01:00
oprofile s390/oprofile: fix address range for asynchronous stack 2016-02-10 09:25:22 +01:00
pci s390/pci: remove iomap sanity checks 2016-01-26 12:46:45 +01:00
tools s390/facilities: add helper tool to generate facility lists 2015-12-18 14:59:20 +01:00
defconfig s390/configs: update default configurations 2016-01-11 13:01:28 +01:00
Kbuild s390/numa: add core infrastructure 2015-08-03 18:40:25 +02:00
Kconfig dma-mapping: always provide the dma_map_ops based implementation 2016-01-20 17:09:18 -08:00
Kconfig.debug arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug 2016-01-09 06:30:49 -08:00
Makefile s390/facilities: add helper tool to generate facility lists 2015-12-18 14:59:20 +01:00