diff options
| author | Petr Machata <petrm@mellanox.com> | 2018-09-20 09:21:35 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-09-20 07:46:02 -0700 |
| commit | a381ed12ea33888a08f0e3e5ba22a255fa5f7257 (patch) | |
| tree | a3bbf66a9ce35329bdc0ae0e9f7f239370dae34b /tools | |
| parent | 3136a3698804f55a26f68e8c897d7ccf254923ad (diff) | |
| download | linux-a381ed12ea33888a08f0e3e5ba22a255fa5f7257.tar.gz | |
selftests: forwarding: lib: Add mtu_set(), mtu_restore()
Some selftests need to tweak MTU of an interface, and naturally should
at teardown restore the MTU back to the original value. Add two
functions to facilitate this MTU handling: mtu_set() to change MTU
value, and mtu_reset() to change it back to what it was before.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/net/forwarding/lib.sh | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 4c2351996a7f..0e73698b2048 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -549,6 +549,23 @@ forwarding_restore() sysctl_restore net.ipv4.conf.all.forwarding } +declare -A MTU_ORIG +mtu_set() +{ + local dev=$1; shift + local mtu=$1; shift + + MTU_ORIG["$dev"]=$(ip -j link show dev $dev | jq -e '.[].mtu') + ip link set dev $dev mtu $mtu +} + +mtu_restore() +{ + local dev=$1; shift + + ip link set dev $dev mtu ${MTU_ORIG["$dev"]} +} + tc_offload_check() { local num_netifs=${1:-$NUM_NETIFS} |