Commit 1a8b6d76 authored by Mao Wenan's avatar Mao Wenan Committed by David S. Miller

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: default avatarMao Wenan <maowenan@huawei.com>
Reviewed-by: default avatarAlexander Duyck <alexander.duyck@gmail.com>
Reviewed-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1e48aac1
......@@ -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"
......@@ -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
......
......@@ -350,7 +350,7 @@ s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw)
}
IXGBE_WRITE_FLUSH(hw);
#ifndef CONFIG_SPARC
#ifndef CONFIG_ARCH_WANT_RELAX_ORDER
/* Disable relaxed ordering */
for (i = 0; i < hw->mac.max_tx_queues; i++) {
u32 regval;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment