Danielle Ratson 1f1c92139e selftests: mlxsw: Remove a redundant if statement in tc_flower_scale test
Currently, the error return code of the failure condition is lost after
using an if statement, so the test doesn't fail when it should.

Remove the if statement that separates the condition and the error code
check, so the test won't always pass.

Fixes: abfce9e062021 ("selftests: mlxsw: Reduce running time using offload indication")
Reported-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23 14:01:28 -07:00

124 lines
2.4 KiB
Bash

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Test for resource limit of offloaded flower rules. The test adds a given
# number of flower matches for different IPv6 addresses, then check the offload
# indication for all of the tc flower rules. This file contains functions to set
# up a testing topology and run the test, and is meant to be sourced from a test
# script that calls the testing routine with a given number of rules.
TC_FLOWER_NUM_NETIFS=2
tc_flower_h1_create()
{
simple_if_init $h1
tc qdisc add dev $h1 clsact
}
tc_flower_h1_destroy()
{
tc qdisc del dev $h1 clsact
simple_if_fini $h1
}
tc_flower_h2_create()
{
simple_if_init $h2
tc qdisc add dev $h2 clsact
}
tc_flower_h2_destroy()
{
tc qdisc del dev $h2 clsact
simple_if_fini $h2
}
tc_flower_setup_prepare()
{
h1=${NETIFS[p1]}
h2=${NETIFS[p2]}
vrf_prepare
tc_flower_h1_create
tc_flower_h2_create
}
tc_flower_cleanup()
{
pre_cleanup
tc_flower_h2_destroy
tc_flower_h1_destroy
vrf_cleanup
if [[ -v TC_FLOWER_BATCH_FILE ]]; then
rm -f $TC_FLOWER_BATCH_FILE
fi
}
tc_flower_addr()
{
local num=$1; shift
printf "2001:db8:1::%x" $num
}
tc_flower_rules_create()
{
local count=$1; shift
local should_fail=$1; shift
TC_FLOWER_BATCH_FILE="$(mktemp)"
for ((i = 0; i < count; ++i)); do
cat >> $TC_FLOWER_BATCH_FILE <<-EOF
filter add dev $h2 ingress \
prot ipv6 \
pref 1000 \
flower $tcflags dst_ip $(tc_flower_addr $i) \
action drop
EOF
done
tc -b $TC_FLOWER_BATCH_FILE
check_err_fail $should_fail $? "Rule insertion"
}
__tc_flower_test()
{
local count=$1; shift
local should_fail=$1; shift
local last=$((count - 1))
tc_flower_rules_create $count $should_fail
offload_count=$(tc -j -s filter show dev $h2 ingress |
jq -r '[ .[] | select(.kind == "flower") |
.options | .in_hw ]' | jq .[] | wc -l)
[[ $((offload_count - 1)) -eq $count ]]
check_err_fail $should_fail $? "Attempt to offload $count rules (actual result $((offload_count - 1)))"
}
tc_flower_test()
{
local count=$1; shift
local should_fail=$1; shift
# We use lower 16 bits of IPv6 address for match. Also there are only 16
# bits of rule priority space.
if ((count > 65536)); then
check_err 1 "Invalid count of $count. At most 65536 rules supported"
return
fi
if ! tc_offload_check $TC_FLOWER_NUM_NETIFS; then
check_err 1 "Could not test offloaded functionality"
return
fi
tcflags="skip_sw"
__tc_flower_test $count $should_fail
}