#!/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" 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 local protocol=$1 local test=$2 local ARGS=( "--${protocol}" "--dmac" "${SERVER_MAC}" \ "--smac" "${CLIENT_MAC}" "--test" "${test}" "--verbose" ) setup_ns # Each test is run 3 times to deflake, because given the receive timing, # not all packets that should coalesce will be considered in the same flow # on every try. for tries in {1..3}; do # Actual test starts here ip netns exec server_ns ./gro "${ARGS[@]}" "--rx" "--iface" "server" \ 1>>log.txt & server_pid=$! sleep 0.5 # to allow for socket init ip netns exec client_ns ./gro "${ARGS[@]}" "--iface" "client" \ 1>>log.txt wait "${server_pid}" exit_code=$? if [[ "${exit_code}" -eq 0 ]]; then break; fi done cleanup_ns echo ${exit_code} } run_all_tests() { local failed_tests=() for proto in "${PROTOS[@]}"; do for test in "${TESTS[@]}"; do echo "running test ${proto} ${test}" >&2 exit_code=$(run_test $proto $test) if [[ "${exit_code}" -ne 0 ]]; then failed_tests+=("${proto}_${test}") fi; done; done if [[ ${#failed_tests[@]} -ne 0 ]]; then echo "failed tests: ${failed_tests[*]}. \ Please see log.txt for more logs" exit 1 else echo "All Tests Succeeded!" fi; } usage() { echo "Usage: $0 \ [-i ] \ [-t data|ack|flags|tcp|ip|large] \ [-p ]" 1>&2; exit 1; } while getopts "i:t:p:" opt; do case "${opt}" in i) dev="${OPTARG}" ;; t) test="${OPTARG}" ;; p) proto="${OPTARG}" ;; *) usage ;; esac done readonly FLUSH_PATH="/sys/class/net/${dev}/gro_flush_timeout" readonly IRQ_PATH="/sys/class/net/${dev}/napi_defer_hard_irqs" readonly FLUSH_TIMEOUT="$(< ${FLUSH_PATH})" readonly HARD_IRQS="$(< ${IRQ_PATH})" setup trap cleanup EXIT if [[ "${test}" == "all" ]]; then run_all_tests else run_test "${proto}" "${test}" fi;