tools/testing/selftests/net/udpgro_bench.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Run a series of udpgro benchmarks
   5
   6 source net_helper.sh
   7
   8 readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
   9
  10 BPF_FILE="xdp_dummy.bpf.o"
  11
  12 cleanup() {
  13         local -r jobs="$(jobs -p)"
  14         local -r ns="$(ip netns list|grep $PEER_NS)"
  15
  16         [ -n "${jobs}" ] && kill -INT ${jobs} 2>/dev/null
  17         [ -n "$ns" ] && ip netns del $ns 2>/dev/null
  18 }
  19 trap cleanup EXIT
  20
  21 run_one() {
  22         # use 'rx' as separator between sender args and receiver args
  23         local -r all="$@"
  24         local -r tx_args=${all%rx*}
  25         local rx_args=${all#*rx}
  26
  27         [[ "${tx_args}" == *"-4"* ]] && rx_args="${rx_args} -4"
  28
  29         ip netns add "${PEER_NS}"
  30         ip -netns "${PEER_NS}" link set lo up
  31         ip link add type veth
  32         ip link set dev veth0 up
  33         ip addr add dev veth0 192.168.1.2/24
  34         ip addr add dev veth0 2001:db8::2/64 nodad
  35
  36         ip link set dev veth1 netns "${PEER_NS}"
  37         ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
  38         ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
  39         ip -netns "${PEER_NS}" link set dev veth1 up
  40
  41         ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
  42         ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
  43         ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r &
  44
  45         wait_local_port_listen "${PEER_NS}" 8000 udp
  46         ./udpgso_bench_tx ${tx_args}
  47 }
  48
  49 run_in_netns() {
  50         local -r args=$@
  51
  52         ./in_netns.sh $0 __subprocess ${args}
  53 }
  54
  55 run_udp() {
  56         local -r args=$@
  57
  58         echo "udp gso - over veth touching data"
  59         run_in_netns ${args} -S 0 rx
  60
  61         echo "udp gso and gro - over veth touching data"
  62         run_in_netns ${args} -S 0 rx -G
  63 }
  64
  65 run_tcp() {
  66         local -r args=$@
  67
  68         echo "tcp - over veth touching data"
  69         run_in_netns ${args} -t rx
  70 }
  71
  72 run_all() {
  73         local -r core_args="-l 4"
  74         local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
  75         local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
  76
  77         echo "ipv4"
  78         run_tcp "${ipv4_args}"
  79         run_udp "${ipv4_args}"
  80
  81         echo "ipv6"
  82         run_tcp "${ipv4_args}"
  83         run_udp "${ipv6_args}"
  84 }
  85
  86 if [ ! -f ${BPF_FILE} ]; then
  87         echo "Missing ${BPF_FILE}. Run 'make' first"
  88         exit -1
  89 fi
  90
  91 if [[ $# -eq 0 ]]; then
  92         run_all
  93 elif [[ $1 == "__subprocess" ]]; then
  94         shift
  95         run_one $@
  96 else
  97         run_in_netns $@
  98 fi