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| author |   Mao Wenan <maowenan@huawei.com> | 2017-01-18 08:50:05 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-01-18 16:33:00 -0500 |
| commit | 1a8b6d76dc5b489cd0123fa8447b6e20569f357b (patch) | |
| tree | 562ba05bd0249bacf6eec63ebd919396bf2f3ae8 /arch | |
| parent | Merge branch 'ipv6-simplify-rt6_fill_node' (diff) | |
| download | linux-dev-1a8b6d76dc5b489cd0123fa8447b6e20569f357b.tar.xz linux-dev-1a8b6d76dc5b489cd0123fa8447b6e20569f357b.zip | |
net:add one common config ARCH_WANT_RELAX_ORDER to support relax ordering
Relax ordering(RO) is one feature of 82599 NIC, to enable this feature can
enhance the performance for some cpu architecure, such as SPARC and so on.
Currently it only supports one special cpu architecture(SPARC) in 82599
driver to enable RO feature, this is not very common for other cpu architecture
which really needs RO feature.
This patch add one common config CONFIG_ARCH_WANT_RELAX_ORDER to set RO feature,
and should define CONFIG_ARCH_WANT_RELAX_ORDER in sparc Kconfig firstly.
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Reviewed-by: Alexander Duyck <alexander.duyck@gmail.com>
Reviewed-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/Kconfig | 3 | ||||
| -rw-r--r-- | arch/sparc/Kconfig | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 99839c23d453..bd04eace455c 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -781,4 +781,7 @@ config VMAP_STACK the stack to map directly to the KASAN shadow map using a formula that is incorrect if the stack is in vmalloc space. +config ARCH_WANT_RELAX_ORDER + bool + source "kernel/gcov/Kconfig" diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index cf4034c66362..68ac5c7cd982 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -44,6 +44,7 @@ config SPARC select CPU_NO_EFFICIENT_FFS select HAVE_ARCH_HARDENED_USERCOPY select PROVE_LOCKING_SMALL if PROVE_LOCKING + select ARCH_WANT_RELAX_ORDER config SPARC32 def_bool !64BIT |