mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/
synced 2026-04-18 06:33:43 -04:00
c85ae0240e
Fix several spelling and grammatical mistakes in output messages from the net selftests to improve readability. Only the message strings for the test output have been modified. No changes to the functional logic of the tests have been made. Signed-off-by: Praveen Balakrishnan <praveen.balakrishnan@magd.ox.ac.uk> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250828211100.51019-1-praveen.balakrishnan@magd.ox.ac.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
80 lines
2.2 KiB
Bash
Executable File
80 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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readonly ksft_skip=4
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readonly cpus=$(nproc)
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ret=0
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[ $cpus -gt 2 ] || exit $ksft_skip
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readonly INITIAL_RPS_DEFAULT_MASK=$(cat /proc/sys/net/core/rps_default_mask)
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readonly TAG="$(mktemp -u XXXXXX)"
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readonly VETH="veth${TAG}"
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readonly NETNS="ns-${TAG}"
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setup() {
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ip netns add "${NETNS}"
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ip -netns "${NETNS}" link set lo up
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}
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cleanup() {
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echo $INITIAL_RPS_DEFAULT_MASK > /proc/sys/net/core/rps_default_mask
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ip netns del $NETNS
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}
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chk_rps() {
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local rps_mask expected_rps_mask=$4
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local dev_name=$3
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local netns=$2
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local cmd="cat"
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local msg=$1
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[ -n "$netns" ] && cmd="ip netns exec $netns $cmd"
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rps_mask=$($cmd /sys/class/net/$dev_name/queues/rx-0/rps_cpus)
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printf "%-60s" "$msg"
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# In case there is more than 32 CPUs we need to remove commas from masks
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rps_mask=${rps_mask//,}
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expected_rps_mask=${expected_rps_mask//,}
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if [ $rps_mask -eq $expected_rps_mask ]; then
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echo "[ ok ]"
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else
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echo "[fail] expected $expected_rps_mask found $rps_mask"
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ret=1
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fi
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}
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trap cleanup EXIT
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echo 0 > /proc/sys/net/core/rps_default_mask
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setup
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chk_rps "empty rps_default_mask" $NETNS lo 0
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cleanup
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echo 1 > /proc/sys/net/core/rps_default_mask
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setup
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chk_rps "changing rps_default_mask doesn't affect existing devices" "" lo $INITIAL_RPS_DEFAULT_MASK
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echo 3 > /proc/sys/net/core/rps_default_mask
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chk_rps "changing rps_default_mask doesn't affect existing netns" $NETNS lo 0
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ip link add name $VETH type veth peer netns $NETNS name $VETH
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ip link set dev $VETH up
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ip -n $NETNS link set dev $VETH up
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chk_rps "changing rps_default_mask affects newly created devices" "" $VETH 3
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chk_rps "changing rps_default_mask doesn't affect newly child netns[II]" $NETNS $VETH 0
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ip link del dev $VETH
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ip netns del $NETNS
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setup
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chk_rps "rps_default_mask is 0 by default in child netns" "$NETNS" lo 0
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ip netns exec $NETNS sysctl -qw net.core.rps_default_mask=1
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ip link add name $VETH type veth peer netns $NETNS name $VETH
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chk_rps "changing rps_default_mask in child ns doesn't affect the main one" "" lo $INITIAL_RPS_DEFAULT_MASK
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chk_rps "changing rps_default_mask in child ns affects new childns devices" $NETNS $VETH 1
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chk_rps "changing rps_default_mask in child ns doesn't affect existing devices" $NETNS lo 0
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exit $ret
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