1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4setup_veth_ns() { 5 local -r link_dev="$1" 6 local -r ns_name="$2" 7 local -r ns_dev="$3" 8 local -r ns_mac="$4" 9 10 [[ -e /var/run/netns/"${ns_name}" ]] || ip netns add "${ns_name}" 11 echo 100000 > "/sys/class/net/${ns_dev}/gro_flush_timeout" 12 ip link set dev "${ns_dev}" netns "${ns_name}" mtu 65535 13 ip -netns "${ns_name}" link set dev "${ns_dev}" up 14 15 ip netns exec "${ns_name}" ethtool -K "${ns_dev}" gro on tso off 16} 17 18setup_ns() { 19 # Set up server_ns namespace and client_ns namespace 20 ip link add name server type veth peer name client 21 22 setup_veth_ns "${dev}" server_ns server "${SERVER_MAC}" 23 setup_veth_ns "${dev}" client_ns client "${CLIENT_MAC}" 24} 25 26cleanup_ns() { 27 local ns_name 28 29 for ns_name in client_ns server_ns; do 30 [[ -e /var/run/netns/"${ns_name}" ]] && ip netns del "${ns_name}" 31 done 32} 33 34setup() { 35 # no global init setup step needed 36 : 37} 38 39cleanup() { 40 cleanup_ns 41} 42