Commit 9af771d2 authored by Paolo Abeni's avatar Paolo Abeni Committed by David S. Miller

selftests/net: allow GRO coalesce test on veth

This change extends the existing GRO coalesce test to
allow running on top of a veth pair, so that no H/W dep
is required to run them.

By default gro.sh will use the veth backend, and will try
to use exiting H/W in loopback mode if a specific device
name is provided with the '-i' command line option.

No functional change is intended for the loopback-based
tests, just move all the relevant initialization/cleanup
code into the related script.

Introduces a new initialization helper script for the
veth backend, and plugs the correct helper script according
to the provided command line.

Additionally, enable veth-based tests by default.

v1 -> v2:
  - drop unused code in setup_veth_ns() - Willem
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8b325d2a
......@@ -26,6 +26,7 @@ TEST_PROGS += unicast_extensions.sh
TEST_PROGS += udpgro_fwd.sh
TEST_PROGS += veth.sh
TEST_PROGS += ioam6.sh
TEST_PROGS += gro.sh
TEST_PROGS_EXTENDED := in_netns.sh
TEST_GEN_FILES = socket nettest
TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy reuseport_addr_any
......
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
source setup_loopback.sh
readonly SERVER_MAC="aa:00:00:00:00:02"
readonly CLIENT_MAC="aa:00:00:00:00:01"
readonly TESTS=("data" "ack" "flags" "tcp" "ip" "large")
readonly PROTOS=("ipv4" "ipv6")
dev="eth0"
dev=""
test="all"
proto="ipv4"
setup_interrupt() {
# Use timer on host to trigger the network stack
# Also disable device interrupt to not depend on NIC interrupt
# Reduce test flakiness caused by unexpected interrupts
echo 100000 >"${FLUSH_PATH}"
echo 50 >"${IRQ_PATH}"
}
setup_ns() {
# Set up server_ns namespace and client_ns namespace
setup_macvlan_ns "${dev}" server_ns server "${SERVER_MAC}"
setup_macvlan_ns "${dev}" client_ns client "${CLIENT_MAC}"
}
cleanup_ns() {
cleanup_macvlan_ns server_ns server client_ns client
}
setup() {
setup_loopback_environment "${dev}"
setup_interrupt
}
cleanup() {
cleanup_loopback "${dev}"
echo "${FLUSH_TIMEOUT}" >"${FLUSH_PATH}"
echo "${HARD_IRQS}" >"${IRQ_PATH}"
}
run_test() {
local server_pid=0
local exit_code=0
......@@ -115,10 +84,12 @@ while getopts "i:t:p:" opt; do
esac
done
readonly FLUSH_PATH="/sys/class/net/${dev}/gro_flush_timeout"
readonly IRQ_PATH="/sys/class/net/${dev}/napi_defer_hard_irqs"
readonly FLUSH_TIMEOUT="$(< ${FLUSH_PATH})"
readonly HARD_IRQS="$(< ${IRQ_PATH})"
if [ -n "$dev" ]; then
source setup_loopback.sh
else
source setup_veth.sh
fi
setup
trap cleanup EXIT
if [[ "${test}" == "all" ]]; then
......
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
readonly FLUSH_PATH="/sys/class/net/${dev}/gro_flush_timeout"
readonly IRQ_PATH="/sys/class/net/${dev}/napi_defer_hard_irqs"
readonly FLUSH_TIMEOUT="$(< ${FLUSH_PATH})"
readonly HARD_IRQS="$(< ${IRQ_PATH})"
netdev_check_for_carrier() {
local -r dev="$1"
......@@ -18,7 +24,7 @@ netdev_check_for_carrier() {
# Assumes that there is no existing ipvlan device on the physical device
setup_loopback_environment() {
local dev="$1"
local dev="$1"
# Fail hard if cannot turn on loopback mode for current NIC
ethtool -K "${dev}" loopback on || exit 1
......@@ -80,3 +86,33 @@ cleanup_loopback(){
exit 1
fi
}
setup_interrupt() {
# Use timer on host to trigger the network stack
# Also disable device interrupt to not depend on NIC interrupt
# Reduce test flakiness caused by unexpected interrupts
echo 100000 >"${FLUSH_PATH}"
echo 50 >"${IRQ_PATH}"
}
setup_ns() {
# Set up server_ns namespace and client_ns namespace
setup_macvlan_ns "${dev}" server_ns server "${SERVER_MAC}"
setup_macvlan_ns "${dev}" client_ns client "${CLIENT_MAC}"
}
cleanup_ns() {
cleanup_macvlan_ns server_ns server client_ns client
}
setup() {
setup_loopback_environment "${dev}"
setup_interrupt
}
cleanup() {
cleanup_loopback "${dev}"
echo "${FLUSH_TIMEOUT}" >"${FLUSH_PATH}"
echo "${HARD_IRQS}" >"${IRQ_PATH}"
}
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
setup_veth_ns() {
local -r link_dev="$1"
local -r ns_name="$2"
local -r ns_dev="$3"
local -r ns_mac="$4"
[[ -e /var/run/netns/"${ns_name}" ]] || ip netns add "${ns_name}"
echo 100000 > "/sys/class/net/${ns_dev}/gro_flush_timeout"
ip link set dev "${ns_dev}" netns "${ns_name}" mtu 65535
ip -netns "${ns_name}" link set dev "${ns_dev}" up
ip netns exec "${ns_name}" ethtool -K "${ns_dev}" gro on tso off
}
setup_ns() {
# Set up server_ns namespace and client_ns namespace
ip link add name server type veth peer name client
setup_veth_ns "${dev}" server_ns server "${SERVER_MAC}"
setup_veth_ns "${dev}" client_ns client "${CLIENT_MAC}"
}
cleanup_ns() {
local ns_name
for ns_name in client_ns server_ns; do
[[ -e /var/run/netns/"${ns_name}" ]] && ip netns del "${ns_name}"
done
}
setup() {
# no global init setup step needed
:
}
cleanup() {
cleanup_ns
}
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