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040806343b
SO_TXTIME hardware offload requires testing across devices, either between machines or separate network namespaces. Split up SO_TXTIME test into tx and rx modes, so traffic can be sent from one process to another. Create a veth-pair on different namespaces and bind each process to an end point via [-S]ource and [-D]estination parameters. Optional start [-t]ime parameter can be passed to synchronize the test across the hosts (with synchorinzed clocks). Signed-off-by: Carlos Llamas <cmllamas@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
89 lines
2.4 KiB
Bash
Executable file
89 lines
2.4 KiB
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Regression tests for the SO_TXTIME interface
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set -e
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readonly DEV="veth0"
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readonly BIN="./so_txtime"
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readonly RAND="$(mktemp -u XXXXXX)"
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readonly NSPREFIX="ns-${RAND}"
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readonly NS1="${NSPREFIX}1"
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readonly NS2="${NSPREFIX}2"
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readonly SADDR4='192.168.1.1'
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readonly DADDR4='192.168.1.2'
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readonly SADDR6='fd::1'
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readonly DADDR6='fd::2'
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cleanup() {
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ip netns del "${NS2}"
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ip netns del "${NS1}"
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}
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trap cleanup EXIT
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# Create virtual ethernet pair between network namespaces
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ip netns add "${NS1}"
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ip netns add "${NS2}"
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ip link add "${DEV}" netns "${NS1}" type veth \
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peer name "${DEV}" netns "${NS2}"
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# Bring the devices up
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ip -netns "${NS1}" link set "${DEV}" up
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ip -netns "${NS2}" link set "${DEV}" up
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# Set fixed MAC addresses on the devices
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ip -netns "${NS1}" link set dev "${DEV}" address 02:02:02:02:02:02
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ip -netns "${NS2}" link set dev "${DEV}" address 06:06:06:06:06:06
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# Add fixed IP addresses to the devices
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ip -netns "${NS1}" addr add 192.168.1.1/24 dev "${DEV}"
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ip -netns "${NS2}" addr add 192.168.1.2/24 dev "${DEV}"
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ip -netns "${NS1}" addr add fd::1/64 dev "${DEV}" nodad
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ip -netns "${NS2}" addr add fd::2/64 dev "${DEV}" nodad
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do_test() {
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local readonly IP="$1"
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local readonly CLOCK="$2"
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local readonly TXARGS="$3"
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local readonly RXARGS="$4"
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if [[ "${IP}" == "4" ]]; then
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local readonly SADDR="${SADDR4}"
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local readonly DADDR="${DADDR4}"
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elif [[ "${IP}" == "6" ]]; then
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local readonly SADDR="${SADDR6}"
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local readonly DADDR="${DADDR6}"
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else
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echo "Invalid IP version ${IP}"
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exit 1
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fi
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local readonly START="$(date +%s%N --date="+ 0.1 seconds")"
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ip netns exec "${NS2}" "${BIN}" -"${IP}" -c "${CLOCK}" -t "${START}" -S "${SADDR}" -D "${DADDR}" "${RXARGS}" -r &
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ip netns exec "${NS1}" "${BIN}" -"${IP}" -c "${CLOCK}" -t "${START}" -S "${SADDR}" -D "${DADDR}" "${TXARGS}"
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wait "$!"
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}
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ip netns exec "${NS1}" tc qdisc add dev "${DEV}" root fq
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do_test 4 mono a,-1 a,-1
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do_test 6 mono a,0 a,0
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do_test 6 mono a,10 a,10
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do_test 4 mono a,10,b,20 a,10,b,20
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do_test 6 mono a,20,b,10 b,20,a,20
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if ip netns exec "${NS1}" tc qdisc replace dev "${DEV}" root etf clockid CLOCK_TAI delta 400000; then
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! do_test 4 tai a,-1 a,-1
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! do_test 6 tai a,0 a,0
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do_test 6 tai a,10 a,10
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do_test 4 tai a,10,b,20 a,10,b,20
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do_test 6 tai a,20,b,10 b,10,a,20
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else
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echo "tc ($(tc -V)) does not support qdisc etf. skipping"
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fi
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echo OK. All tests passed
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