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# SPDX-License-Identifier: GPL-2.0
nh_stats_do_test()
{
local what=$1; shift
local nh1_id=$1; shift
local nh2_id=$1; shift
local group_id=$1; shift
local stats_get=$1; shift
local mz="$@"
local dp
RET=0
sleep 2
for ((dp=0; dp < 60000; dp += 10000)); do
local dd
local t0_rp12=$(link_stats_tx_packets_get $rp12)
local t0_rp13=$(link_stats_tx_packets_get $rp13)
local t0_nh1=$($stats_get $group_id $nh1_id)
local t0_nh2=$($stats_get $group_id $nh2_id)
ip vrf exec vrf-h1 \
$mz -q -p 64 -d 0 -t udp \
"sp=1024,dp=$((dp))-$((dp + 10000))"
sleep 2
local t1_rp12=$(link_stats_tx_packets_get $rp12)
local t1_rp13=$(link_stats_tx_packets_get $rp13)
local t1_nh1=$($stats_get $group_id $nh1_id)
local t1_nh2=$($stats_get $group_id $nh2_id)
local d_rp12=$((t1_rp12 - t0_rp12))
local d_rp13=$((t1_rp13 - t0_rp13))
local d_nh1=$((t1_nh1 - t0_nh1))
local d_nh2=$((t1_nh2 - t0_nh2))
dd=$(absval $((d_rp12 - d_nh1)))
((dd < 10))
check_err $? "Discrepancy between link and $stats_get: d_rp12=$d_rp12 d_nh1=$d_nh1"
dd=$(absval $((d_rp13 - d_nh2)))
((dd < 10))
check_err $? "Discrepancy between link and $stats_get: d_rp13=$d_rp13 d_nh2=$d_nh2"
done
log_test "NH stats test $what"
}
nh_stats_test_dispatch_swhw()
{
local what=$1; shift
local nh1_id=$1; shift
local nh2_id=$1; shift
local group_id=$1; shift
local mz="$@"
nh_stats_do_test "$what" "$nh1_id" "$nh2_id" "$group_id" \
nh_stats_get "${mz[@]}"
xfail_on_veth $rp11 \
nh_stats_do_test "HW $what" "$nh1_id" "$nh2_id" "$group_id" \
nh_stats_get_hw "${mz[@]}"
}
nh_stats_test_dispatch()
{
local nhgtype=$1; shift
local what=$1; shift
local nh1_id=$1; shift
local nh2_id=$1; shift
local group_id=$1; shift
local mz="$@"
local enabled
if ! ip nexthop help 2>&1 | grep -q hw_stats; then
log_test_skip "NH stats test: ip doesn't support HW stats"
return
fi
ip nexthop replace id $group_id group $nh1_id/$nh2_id \
hw_stats on type $nhgtype
enabled=$(ip -s -j -d nexthop show id $group_id |
jq '.[].hw_stats.enabled')
if [[ $enabled == true ]]; then
nh_stats_test_dispatch_swhw "$what" "$nh1_id" "$nh2_id" \
"$group_id" "${mz[@]}"
elif [[ $enabled == false ]]; then
check_err 1 "HW stats still disabled after enabling"
log_test "NH stats test"
else
log_test_skip "NH stats test: ip doesn't report hw_stats info"
fi
ip nexthop replace id $group_id group $nh1_id/$nh2_id \
hw_stats off type $nhgtype
}
__nh_stats_test_v4()
{
local nhgtype=$1; shift
sysctl_set net.ipv4.fib_multipath_hash_policy 1
nh_stats_test_dispatch $nhgtype "IPv4" 101 102 103 \
$MZ $h1 -A 192.0.2.2 -B 198.51.100.2
sysctl_restore net.ipv4.fib_multipath_hash_policy
}
__nh_stats_test_v6()
{
local nhgtype=$1; shift
sysctl_set net.ipv6.fib_multipath_hash_policy 1
nh_stats_test_dispatch $nhgtype "IPv6" 104 105 106 \
$MZ -6 $h1 -A 2001:db8:1::2 -B 2001:db8:2::2
sysctl_restore net.ipv6.fib_multipath_hash_policy
}
check_nhgw16()
{
local nhid=$1; shift
ip nexthop replace id 9999 group "$nhid,65535" &>/dev/null
if (( $? )); then
log_test_skip "16-bit multipath tests" \
"iproute2 or the kernel do not support 16-bit next hop weights"
return 1
fi
ip nexthop del id 9999 ||:
}
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