selftests: test creating netdevsim inside network namespace

Add a test that creates netdevsim instance inside network namespace
and verifies that the related devlink instance and port netdevices
reside in the namespace.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-10-05 08:10:33 +02:00 committed by David S. Miller
parent 7b60027bbc
commit c04d71b5b2
2 changed files with 78 additions and 1 deletions

View File

@ -0,0 +1,72 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
lib_dir=$(dirname $0)/../../../net/forwarding
ALL_TESTS="check_devlink_test check_ports_test"
NUM_NETIFS=0
source $lib_dir/lib.sh
BUS_ADDR=10
PORT_COUNT=4
DEV_NAME=netdevsim$BUS_ADDR
SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV_NAME/net/
DL_HANDLE=netdevsim/$DEV_NAME
NETNS_NAME=testns1
port_netdev_get()
{
local port_index=$1
cmd_jq "devlink -N $NETNS_NAME port show -j" \
".[][\"$DL_HANDLE/$port_index\"].netdev" "-e"
}
check_ports_test()
{
RET=0
for i in $(seq 0 $(expr $PORT_COUNT - 1)); do
netdev_name=$(port_netdev_get $i)
check_err $? "Failed to get netdev name for port $DL_HANDLE/$i"
ip -n $NETNS_NAME link show $netdev_name &> /dev/null
check_err $? "Failed to find netdev $netdev_name"
done
log_test "check ports test"
}
check_devlink_test()
{
RET=0
devlink -N $NETNS_NAME dev show $DL_HANDLE &> /dev/null
check_err $? "Failed to show devlink instance"
log_test "check devlink test"
}
setup_prepare()
{
modprobe netdevsim
ip netns add $NETNS_NAME
ip netns exec $NETNS_NAME \
echo "$BUS_ADDR $PORT_COUNT" > /sys/bus/netdevsim/new_device
while [ ! -d $SYSFS_NET_DIR ] ; do :; done
}
cleanup()
{
pre_cleanup
echo "$BUS_ADDR" > /sys/bus/netdevsim/del_device
ip netns del $NETNS_NAME
modprobe -r netdevsim
}
trap cleanup EXIT
setup_prepare
tests_run
exit $EXIT_STATUS

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@ -254,6 +254,7 @@ cmd_jq()
{
local cmd=$1
local jq_exp=$2
local jq_opts=$3
local ret
local output
@ -263,7 +264,11 @@ cmd_jq()
if [[ $ret -ne 0 ]]; then
return $ret
fi
output=$(echo $output | jq -r "$jq_exp")
output=$(echo $output | jq -r $jq_opts "$jq_exp")
ret=$?
if [[ $ret -ne 0 ]]; then
return $ret
fi
echo $output
# return success only in case of non-empty output
[ ! -z "$output" ]