net: ethernet: mediatek: enhance RX path by reducing the frequency of the memory barrier used

The patch makes move wmb() to outside the loop that could help
RX path handling more faster although that RX descriptors aren't
freed for DMA to use as soon as possible, but based on my experiment
and the result shows it still can reach about 943Mbpis without
performance drop that is tested based on the setup with one port
using Giga PHY and 256 RX descriptors for DMA to move.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c

path: root/curvetun/nacl_path.sh

#!/bin/bash
# -*- coding: utf-8 -*-
#
# nacl_path.sh -- NaCl path export script
#
# Copyright (C) 2009-2011 Emmanuel Roullit <emmanuel@netsniff-ng.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.

nacl_include_path="$1"
nacl_lib_path="$2"

if test -z $nacl_include_path || test -z $nacl_lib_path; then
	echo "Please input the path where NaCl is like the following:"
	echo "./$0.sh <include_path> <lib_path>"
	exit 1
fi

echo "export NACL_INC_DIR=$nacl_include_path" >> ~/.bashrc
echo "export NACL_LIB_DIR=$nacl_lib_path" >> ~/.bashrc