net:add one common config ARCH_WANT_RELAX_ORDER to support relax ordering
authorMao Wenan <maowenan@huawei.com>
Wed, 18 Jan 2017 00:50:05 +0000 (08:50 +0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 18 Jan 2017 21:33:00 +0000 (16:33 -0500)
commit1a8b6d76dc5b489cd0123fa8447b6e20569f357b
tree562ba05bd0249bacf6eec63ebd919396bf2f3ae8
parent1e48aac14cc896b5a6a8f8f32c9744c52bebf4ee
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>
arch/Kconfig
arch/sparc/Kconfig
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c