tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4readonly server_ns=$(mktemp -u server-XXXXXXXX)
5readonly client_ns=$(mktemp -u client-XXXXXXXX)
6
7setup_veth_ns() {
8 local -r link_dev="$1"
9 local -r ns_name="$2"
10 local -r ns_dev="$3"
11 local -r ns_mac="$4"
12
13 [[ -e /var/run/netns/"${ns_name}" ]] || ip netns add "${ns_name}"
14 echo 200000 > "/sys/class/net/${ns_dev}/gro_flush_timeout"
15 echo 1 > "/sys/class/net/${ns_dev}/napi_defer_hard_irqs"
16 ip link set dev "${ns_dev}" netns "${ns_name}" mtu 65535
17 ip -netns "${ns_name}" link set dev "${ns_dev}" up
18
19 ip netns exec "${ns_name}" ethtool -K "${ns_dev}" gro on tso off
20}
21
22setup_ns() {
23 # Set up server_ns namespace and client_ns namespace
24 ip link add name server type veth peer name client
25
26 setup_veth_ns "${dev}" ${server_ns} server "${SERVER_MAC}"
27 setup_veth_ns "${dev}" ${client_ns} client "${CLIENT_MAC}"
28}
29
30cleanup_ns() {
31 local ns_name
32
33 for ns_name in ${client_ns} ${server_ns}; do
34 [[ -e /var/run/netns/"${ns_name}" ]] && ip netns del "${ns_name}"
35 done
36}
37
38setup() {
39 # no global init setup step needed
40 :
41}
42
43cleanup() {
44 cleanup_ns
45}