diff options
Diffstat (limited to 'tools/testing/selftests/net/msg_zerocopy.sh')
| -rwxr-xr-x | tools/testing/selftests/net/msg_zerocopy.sh | 84 |
1 files changed, 62 insertions, 22 deletions
diff --git a/tools/testing/selftests/net/msg_zerocopy.sh b/tools/testing/selftests/net/msg_zerocopy.sh index 89c22f5320e0..28178a38a4e7 100755 --- a/tools/testing/selftests/net/msg_zerocopy.sh +++ b/tools/testing/selftests/net/msg_zerocopy.sh @@ -6,6 +6,7 @@ set -e readonly DEV="veth0" +readonly DUMMY_DEV="dummy0" readonly DEV_MTU=65535 readonly BIN="./msg_zerocopy" @@ -14,21 +15,25 @@ readonly NSPREFIX="ns-${RAND}" readonly NS1="${NSPREFIX}1" readonly NS2="${NSPREFIX}2" -readonly SADDR4='192.168.1.1' -readonly DADDR4='192.168.1.2' -readonly SADDR6='fd::1' -readonly DADDR6='fd::2' +readonly LPREFIX4='192.168.1' +readonly RPREFIX4='192.168.2' +readonly LPREFIX6='fd' +readonly RPREFIX6='fc' + readonly path_sysctl_mem="net.core.optmem_max" # No arguments: automated test if [[ "$#" -eq "0" ]]; then - $0 4 tcp -t 1 - $0 6 tcp -t 1 - $0 4 udp -t 1 - $0 6 udp -t 1 - echo "OK. All tests passed" - exit 0 + ret=0 + + $0 4 tcp -t 1 || ret=1 + $0 6 tcp -t 1 || ret=1 + $0 4 udp -t 1 || ret=1 + $0 6 udp -t 1 || ret=1 + + [[ "$ret" == "0" ]] && echo "OK. All tests passed" + exit $ret fi # Argument parsing @@ -45,11 +50,18 @@ readonly EXTRA_ARGS="$@" # Argument parsing: configure addresses if [[ "${IP}" == "4" ]]; then - readonly SADDR="${SADDR4}" - readonly DADDR="${DADDR4}" + readonly SADDR="${LPREFIX4}.1" + readonly DADDR="${LPREFIX4}.2" + readonly DUMMY_ADDR="${RPREFIX4}.1" + readonly DADDR_TXONLY="${RPREFIX4}.2" + readonly MASK="24" elif [[ "${IP}" == "6" ]]; then - readonly SADDR="${SADDR6}" - readonly DADDR="${DADDR6}" + readonly SADDR="${LPREFIX6}::1" + readonly DADDR="${LPREFIX6}::2" + readonly DUMMY_ADDR="${RPREFIX6}::1" + readonly DADDR_TXONLY="${RPREFIX6}::2" + readonly MASK="64" + readonly NODAD="nodad" else echo "Invalid IP version ${IP}" exit 1 @@ -89,33 +101,61 @@ ip netns exec "${NS2}" sysctl -w -q "${path_sysctl_mem}=1000000" ip link add "${DEV}" mtu "${DEV_MTU}" netns "${NS1}" type veth \ peer name "${DEV}" mtu "${DEV_MTU}" netns "${NS2}" +ip link add "${DUMMY_DEV}" mtu "${DEV_MTU}" netns "${NS2}" type dummy + # Bring the devices up ip -netns "${NS1}" link set "${DEV}" up ip -netns "${NS2}" link set "${DEV}" up +ip -netns "${NS2}" link set "${DUMMY_DEV}" up # Set fixed MAC addresses on the devices ip -netns "${NS1}" link set dev "${DEV}" address 02:02:02:02:02:02 ip -netns "${NS2}" link set dev "${DEV}" address 06:06:06:06:06:06 # Add fixed IP addresses to the devices -ip -netns "${NS1}" addr add 192.168.1.1/24 dev "${DEV}" -ip -netns "${NS2}" addr add 192.168.1.2/24 dev "${DEV}" -ip -netns "${NS1}" addr add fd::1/64 dev "${DEV}" nodad -ip -netns "${NS2}" addr add fd::2/64 dev "${DEV}" nodad +ip -netns "${NS1}" addr add "${SADDR}/${MASK}" dev "${DEV}" ${NODAD} +ip -netns "${NS2}" addr add "${DADDR}/${MASK}" dev "${DEV}" ${NODAD} +ip -netns "${NS2}" addr add "${DUMMY_ADDR}/${MASK}" dev "${DUMMY_DEV}" ${NODAD} + +ip -netns "${NS1}" route add default via "${DADDR}" dev "${DEV}" +ip -netns "${NS2}" route add default via "${DADDR_TXONLY}" dev "${DUMMY_DEV}" + +ip netns exec "${NS2}" sysctl -wq net.ipv4.ip_forward=1 +ip netns exec "${NS2}" sysctl -wq net.ipv6.conf.all.forwarding=1 # Optionally disable sg or csum offload to test edge cases # ip netns exec "${NS1}" ethtool -K "${DEV}" sg off +ret=0 + do_test() { local readonly ARGS="$1" - echo "ipv${IP} ${TXMODE} ${ARGS}" - ip netns exec "${NS2}" "${BIN}" "-${IP}" -i "${DEV}" -t 2 -C 2 -S "${SADDR}" -D "${DADDR}" ${ARGS} -r "${RXMODE}" & + # tx-rx test + # packets queued to a local socket are copied, + # sender notification has SO_EE_CODE_ZEROCOPY_COPIED. + + echo -e "\nipv${IP} ${TXMODE} ${ARGS} tx-rx\n" + ip netns exec "${NS2}" "${BIN}" "-${IP}" -i "${DEV}" -t 2 -C 2 \ + -S "${SADDR}" -D "${DADDR}" ${ARGS} -r "${RXMODE}" & sleep 0.2 - ip netns exec "${NS1}" "${BIN}" "-${IP}" -i "${DEV}" -t 1 -C 3 -S "${SADDR}" -D "${DADDR}" ${ARGS} "${TXMODE}" + ip netns exec "${NS1}" "${BIN}" "-${IP}" -i "${DEV}" -t 1 -C 3 \ + -S "${SADDR}" -D "${DADDR}" ${ARGS} "${TXMODE}" -Z 0 || ret=1 wait + + # next test is unconnected tx to dummy0, cannot exercise with tcp + [[ "${TXMODE}" == "tcp" ]] && return + + # tx-only test: send out dummy0 + # packets leaving the host are not copied, + # sender notification does not have SO_EE_CODE_ZEROCOPY_COPIED. + + echo -e "\nipv${IP} ${TXMODE} ${ARGS} tx-only\n" + ip netns exec "${NS1}" "${BIN}" "-${IP}" -i "${DEV}" -t 1 -C 3 \ + -S "${SADDR}" -D "${DADDR_TXONLY}" ${ARGS} "${TXMODE}" -Z 1 || ret=1 } do_test "${EXTRA_ARGS}" do_test "-z ${EXTRA_ARGS}" -echo ok + +[[ "$ret" == "0" ]] && echo "OK" |