diff options
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/testing/selftests/drivers/net/dsa/test_bridge_fdb_stress.sh | 47 | ||||
| -rw-r--r-- | tools/testing/selftests/net/forwarding/lib.sh | 10 |
2 files changed, 55 insertions, 2 deletions
diff --git a/tools/testing/selftests/drivers/net/dsa/test_bridge_fdb_stress.sh b/tools/testing/selftests/drivers/net/dsa/test_bridge_fdb_stress.sh new file mode 100755 index 000000000000..dca8be6092b9 --- /dev/null +++ b/tools/testing/selftests/drivers/net/dsa/test_bridge_fdb_stress.sh @@ -0,0 +1,47 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Bridge FDB entries can be offloaded to DSA switches without holding the +# rtnl_mutex. Traditionally this mutex has conferred drivers implicit +# serialization, which means their code paths are not well tested in the +# presence of concurrency. +# This test creates a background task that stresses the FDB by adding and +# deleting an entry many times in a row without the rtnl_mutex held. +# It then tests the driver resistance to concurrency by calling .ndo_fdb_dump +# (with rtnl_mutex held) from a foreground task. +# Since either the FDB dump or the additions/removals can fail, but the +# additions and removals are performed in deferred as opposed to process +# context, we cannot simply check for user space error codes. + +WAIT_TIME=1 +NUM_NETIFS=1 +REQUIRE_JQ="no" +REQUIRE_MZ="no" +NETIF_CREATE="no" +lib_dir=$(dirname $0)/../../../net/forwarding +source $lib_dir/lib.sh + +cleanup() { + echo "Cleaning up" + kill $pid && wait $pid &> /dev/null + ip link del br0 + echo "Please check kernel log for errors" +} +trap 'cleanup' EXIT + +eth=${NETIFS[p1]} + +ip link del br0 2&>1 >/dev/null || : +ip link add br0 type bridge && ip link set $eth master br0 + +(while :; do + bridge fdb add 00:01:02:03:04:05 dev $eth master static + bridge fdb del 00:01:02:03:04:05 dev $eth master static +done) & +pid=$! + +for i in $(seq 1 50); do + bridge fdb show > /dev/null + sleep 3 + echo "$((${i} * 2))% complete..." +done diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 92087d423bcf..520d8b53464b 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -23,6 +23,8 @@ MC_CLI=${MC_CLI:=smcroutectl} PING_TIMEOUT=${PING_TIMEOUT:=5} WAIT_TIMEOUT=${WAIT_TIMEOUT:=20} INTERFACE_TIMEOUT=${INTERFACE_TIMEOUT:=600} +REQUIRE_JQ=${REQUIRE_JQ:=yes} +REQUIRE_MZ=${REQUIRE_MZ:=yes} relative_path="${BASH_SOURCE%/*}" if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then @@ -141,8 +143,12 @@ require_command() fi } -require_command jq -require_command $MZ +if [[ "$REQUIRE_JQ" = "yes" ]]; then + require_command jq +fi +if [[ "$REQUIRE_MZ" = "yes" ]]; then + require_command $MZ +fi if [[ ! -v NUM_NETIFS ]]; then echo "SKIP: importer does not define \"NUM_NETIFS\"" |