/usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net/forwarding
Edit: /usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net/forwarding/devlink_lib.sh (13118B)
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
##############################################################################
# Defines
if [[ ! -v DEVLINK_DEV ]]; then
DEVLINK_DEV=$(devlink port show "${NETIFS[p1]:-$NETIF_NO_CABLE}" -j \
| jq -r '.port | keys[]' | cut -d/ -f-2)
if [ -z "$DEVLINK_DEV" ]; then
echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it"
exit $ksft_skip
fi
if [[ "$(echo $DEVLINK_DEV | grep -c pci)" -eq 0 ]]; then
echo "SKIP: devlink device's bus is not PCI"
exit $ksft_skip
fi
DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
-n | cut -d" " -f3)
elif [[ ! -z "$DEVLINK_DEV" ]]; then
devlink dev show $DEVLINK_DEV &> /dev/null
if [ $? -ne 0 ]; then
echo "SKIP: devlink device \"$DEVLINK_DEV\" not found"
exit $ksft_skip
fi
fi
##############################################################################
# Sanity checks
devlink help 2>&1 | grep resource &> /dev/null
if [ $? -ne 0 ]; then
echo "SKIP: iproute2 too old, missing devlink resource support"
exit $ksft_skip
fi
devlink help 2>&1 | grep trap &> /dev/null
if [ $? -ne 0 ]; then
echo "SKIP: iproute2 too old, missing devlink trap support"
exit $ksft_skip
fi
devlink dev help 2>&1 | grep info &> /dev/null
if [ $? -ne 0 ]; then
echo "SKIP: iproute2 too old, missing devlink dev info support"
exit $ksft_skip
fi
##############################################################################
# Devlink helpers
devlink_resource_names_to_path()
{
local resource
local path=""
for resource in "${@}"; do
if [ "$path" == "" ]; then
path="$resource"
else
path="${path}/$resource"
fi
done
echo "$path"
}
devlink_resource_get()
{
local name=$1
local resource_name=.[][\"$DEVLINK_DEV\"]
resource_name="$resource_name | .[] | select (.name == \"$name\")"
shift
for resource in "${@}"; do
resource_name="${resource_name} | .[\"resources\"][] | \
select (.name == \"$resource\")"
done
devlink -j resource show "$DEVLINK_DEV" | jq "$resource_name"
}
devlink_resource_size_get()
{
local size=$(devlink_resource_get "$@" | jq '.["size_new"]')
if [ "$size" == "null" ]; then
devlink_resource_get "$@" | jq '.["size"]'
else
echo "$size"
fi
}
devlink_resource_size_set()
{
local new_size=$1
local path
shift
path=$(devlink_resource_names_to_path "$@")
devlink resource set "$DEVLINK_DEV" path "$path" size "$new_size"
check_err $? "Failed setting path $path to size $size"
}
devlink_resource_occ_get()
{
devlink_resource_get "$@" | jq '.["occ"]'
}
devlink_reload()
{
local still_pending
devlink dev reload "$DEVLINK_DEV" &> /dev/null
check_err $? "Failed reload"
still_pending=$(devlink resource show "$DEVLINK_DEV" | \
grep -c "size_new")
check_err $still_pending "Failed reload - There are still unset sizes"
udevadm settle
}
declare -A DEVLINK_ORIG
# Changing pool type from static to dynamic causes reinterpretation of threshold
# values. They therefore need to be saved before pool type is changed, then the
# pool type can be changed, and then the new values need to be set up. Therefore
# instead of saving the current state implicitly in the _set call, provide
# functions for all three primitives: save, set, and restore.
devlink_port_pool_threshold()
{
local port=$1; shift
local pool=$1; shift
devlink sb port pool show $port pool $pool -j \
| jq '.port_pool."'"$port"'"[].threshold'
}
devlink_port_pool_th_save()
{
local port=$1; shift
local pool=$1; shift
local key="port_pool($port,$pool).threshold"
DEVLINK_ORIG[$key]=$(devlink_port_pool_threshold $port $pool)
}
devlink_port_pool_th_set()
{
local port=$1; shift
local pool=$1; shift
local th=$1; shift
devlink sb port pool set $port pool $pool th $th
}
devlink_port_pool_th_restore()
{
local port=$1; shift
local pool=$1; shift
local key="port_pool($port,$pool).threshold"
local -a orig=(${DEVLINK_ORIG[$key]})
if [[ -z $orig ]]; then
echo "WARNING: Mismatched devlink_port_pool_th_restore"
else
devlink sb port pool set $port pool $pool th $orig
fi
}
devlink_pool_size_thtype()
{
local pool=$1; shift
devlink sb pool show "$DEVLINK_DEV" pool $pool -j \
| jq -r '.pool[][] | (.size, .thtype)'
}
devlink_pool_size_thtype_save()
{
local pool=$1; shift
local key="pool($pool).size_thtype"
DEVLINK_ORIG[$key]=$(devlink_pool_size_thtype $pool)
}
devlink_pool_size_thtype_set()
{
local pool=$1; shift
local thtype=$1; shift
local size=$1; shift
devlink sb pool set "$DEVLINK_DEV" pool $pool size $size thtype $thtype
}
devlink_pool_size_thtype_restore()
{
local pool=$1; shift
local key="pool($pool).size_thtype"
local -a orig=(${DEVLINK_ORIG[$key]})
if [[ -z ${orig[0]} ]]; then
echo "WARNING: Mismatched devlink_pool_size_thtype_restore"
else
devlink sb pool set "$DEVLINK_DEV" pool $pool \
size ${orig[0]} thtype ${orig[1]}
fi
}
devlink_tc_bind_pool_th()
{
local port=$1; shift
local tc=$1; shift
local dir=$1; shift
devlink sb tc bind show $port tc $tc type $dir -j \
| jq -r '.tc_bind[][] | (.pool, .threshold)'
}
devlink_tc_bind_pool_th_save()
{
local port=$1; shift
local tc=$1; shift
local dir=$1; shift
local key="tc_bind($port,$dir,$tc).pool_th"
DEVLINK_ORIG[$key]=$(devlink_tc_bind_pool_th $port $tc $dir)
}
devlink_tc_bind_pool_th_set()
{
local port=$1; shift
local tc=$1; shift
local dir=$1; shift
local pool=$1; shift
local th=$1; shift
devlink sb tc bind set $port tc $tc type $dir pool $pool th $th
}
devlink_tc_bind_pool_th_restore()
{
local port=$1; shift
local tc=$1; shift
local dir=$1; shift
local key="tc_bind($port,$dir,$tc).pool_th"
local -a orig=(${DEVLINK_ORIG[$key]})
if [[ -z ${orig[0]} ]]; then
echo "WARNING: Mismatched devlink_tc_bind_pool_th_restore"
else
devlink sb tc bind set $port tc $tc type $dir \
pool ${orig[0]} th ${orig[1]}
fi
}
devlink_traps_num_get()
{
devlink -j trap | jq '.[]["'$DEVLINK_DEV'"] | length'
}
devlink_traps_get()
{
devlink -j trap | jq -r '.[]["'$DEVLINK_DEV'"][].name'
}
devlink_trap_type_get()
{
local trap_name=$1; shift
devlink -j trap show $DEVLINK_DEV trap $trap_name \
| jq -r '.[][][].type'
}
devlink_trap_action_set()
{
local trap_name=$1; shift
local action=$1; shift
# Pipe output to /dev/null to avoid expected warnings.
devlink trap set $DEVLINK_DEV trap $trap_name \
action $action &> /dev/null
}
devlink_trap_action_get()
{
local trap_name=$1; shift
devlink -j trap show $DEVLINK_DEV trap $trap_name \
| jq -r '.[][][].action'
}
devlink_trap_group_get()
{
devlink -j trap show $DEVLINK_DEV trap $trap_name \
| jq -r '.[][][].group'
}
devlink_trap_metadata_test()
{
local trap_name=$1; shift
local metadata=$1; shift
devlink -jv trap show $DEVLINK_DEV trap $trap_name \
| jq -e '.[][][].metadata | contains(["'$metadata'"])' \
&> /dev/null
}
devlink_trap_rx_packets_get()
{
local trap_name=$1; shift
devlink -js trap show $DEVLINK_DEV trap $trap_name \
| jq '.[][][]["stats"]["rx"]["packets"]'
}
devlink_trap_rx_bytes_get()
{
local trap_name=$1; shift
devlink -js trap show $DEVLINK_DEV trap $trap_name \
| jq '.[][][]["stats"]["rx"]["bytes"]'
}
devlink_trap_drop_packets_get()
{
local trap_name=$1; shift
devlink -js trap show $DEVLINK_DEV trap $trap_name \
| jq '.[][][]["stats"]["rx"]["dropped"]'
}
devlink_trap_stats_idle_test()
{
local trap_name=$1; shift
local t0_packets t0_bytes
local t1_packets t1_bytes
t0_packets=$(devlink_trap_rx_packets_get $trap_name)
t0_bytes=$(devlink_trap_rx_bytes_get $trap_name)
sleep 1
t1_packets=$(devlink_trap_rx_packets_get $trap_name)
t1_bytes=$(devlink_trap_rx_bytes_get $trap_name)
if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
return 0
else
return 1
fi
}
devlink_trap_drop_stats_idle_test()
{
local trap_name=$1; shift
local t0_packets t0_bytes
t0_packets=$(devlink_trap_drop_packets_get $trap_name)
sleep 1
t1_packets=$(devlink_trap_drop_packets_get $trap_name)
if [[ $t0_packets -eq $t1_packets ]]; then
return 0
else
return 1
fi
}
devlink_traps_enable_all()
{
local trap_name
for trap_name in $(devlink_traps_get); do
devlink_trap_action_set $trap_name "trap"
done
}
devlink_traps_disable_all()
{
for trap_name in $(devlink_traps_get); do
devlink_trap_action_set $trap_name "drop"
done
}
devlink_trap_groups_get()
{
devlink -j trap group | jq -r '.[]["'$DEVLINK_DEV'"][].name'
}
devlink_trap_group_action_set()
{
local group_name=$1; shift
local action=$1; shift
# Pipe output to /dev/null to avoid expected warnings.
devlink trap group set $DEVLINK_DEV group $group_name action $action \
&> /dev/null
}
devlink_trap_group_rx_packets_get()
{
local group_name=$1; shift
devlink -js trap group show $DEVLINK_DEV group $group_name \
| jq '.[][][]["stats"]["rx"]["packets"]'
}
devlink_trap_group_rx_bytes_get()
{
local group_name=$1; shift
devlink -js trap group show $DEVLINK_DEV group $group_name \
| jq '.[][][]["stats"]["rx"]["bytes"]'
}
devlink_trap_group_stats_idle_test()
{
local group_name=$1; shift
local t0_packets t0_bytes
local t1_packets t1_bytes
t0_packets=$(devlink_trap_group_rx_packets_get $group_name)
t0_bytes=$(devlink_trap_group_rx_bytes_get $group_name)
sleep 1
t1_packets=$(devlink_trap_group_rx_packets_get $group_name)
t1_bytes=$(devlink_trap_group_rx_bytes_get $group_name)
if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
return 0
else
return 1
fi
}
devlink_trap_exception_test()
{
local trap_name=$1; shift
local group_name
group_name=$(devlink_trap_group_get $trap_name)
devlink_trap_stats_idle_test $trap_name
check_fail $? "Trap stats idle when packets should have been trapped"
devlink_trap_group_stats_idle_test $group_name
check_fail $? "Trap group idle when packets should have been trapped"
}
devlink_trap_drop_test()
{
local trap_name=$1; shift
local dev=$1; shift
local handle=$1; shift
local group_name
group_name=$(devlink_trap_group_get $trap_name)
# This is the common part of all the tests. It checks that stats are
# initially idle, then non-idle after changing the trap action and
# finally idle again. It also makes sure the packets are dropped and
# never forwarded.
devlink_trap_stats_idle_test $trap_name
check_err $? "Trap stats not idle with initial drop action"
devlink_trap_group_stats_idle_test $group_name
check_err $? "Trap group stats not idle with initial drop action"
devlink_trap_action_set $trap_name "trap"
devlink_trap_stats_idle_test $trap_name
check_fail $? "Trap stats idle after setting action to trap"
devlink_trap_group_stats_idle_test $group_name
check_fail $? "Trap group stats idle after setting action to trap"
devlink_trap_action_set $trap_name "drop"
devlink_trap_stats_idle_test $trap_name
check_err $? "Trap stats not idle after setting action to drop"
devlink_trap_group_stats_idle_test $group_name
check_err $? "Trap group stats not idle after setting action to drop"
tc_check_packets "dev $dev egress" $handle 0
check_err $? "Packets were not dropped"
}
devlink_trap_drop_cleanup()
{
local mz_pid=$1; shift
local dev=$1; shift
local proto=$1; shift
local pref=$1; shift
local handle=$1; shift
kill $mz_pid && wait $mz_pid &> /dev/null
tc filter del dev $dev egress protocol $proto pref $pref handle $handle flower
}
devlink_trap_stats_test()
{
local test_name=$1; shift
local trap_name=$1; shift
local send_one="$@"
local t0_packets
local t1_packets
RET=0
t0_packets=$(devlink_trap_rx_packets_get $trap_name)
$send_one && sleep 1
t1_packets=$(devlink_trap_rx_packets_get $trap_name)
if [[ $t1_packets -eq $t0_packets ]]; then
check_err 1 "Trap stats did not increase"
fi
log_test "$test_name"
}
devlink_trap_policers_num_get()
{
devlink -j -p trap policer show | jq '.[]["'$DEVLINK_DEV'"] | length'
}
devlink_trap_policer_rate_get()
{
local policer_id=$1; shift
devlink -j -p trap policer show $DEVLINK_DEV policer $policer_id \
| jq '.[][][]["rate"]'
}
devlink_trap_policer_burst_get()
{
local policer_id=$1; shift
devlink -j -p trap policer show $DEVLINK_DEV policer $policer_id \
| jq '.[][][]["burst"]'
}
devlink_trap_policer_rx_dropped_get()
{
local policer_id=$1; shift
devlink -j -p -s trap policer show $DEVLINK_DEV policer $policer_id \
| jq '.[][][]["stats"]["rx"]["dropped"]'
}
devlink_trap_group_policer_get()
{
local group_name=$1; shift
devlink -j -p trap group show $DEVLINK_DEV group $group_name \
| jq '.[][][]["policer"]'
}
devlink_trap_policer_ids_get()
{
devlink -j -p trap policer show \
| jq '.[]["'$DEVLINK_DEV'"][]["policer"]'
}
devlink_port_by_netdev()
{
local if_name=$1
devlink -j port show $if_name | jq -e '.[] | keys' | jq -r '.[]'
}
devlink_cpu_port_get()
{
local cpu_dl_port_num=$(devlink port list | grep "$DEVLINK_DEV" |
grep cpu | cut -d/ -f3 | cut -d: -f1 |
sed -n '1p')
echo "$DEVLINK_DEV/$cpu_dl_port_num"
}
devlink_cell_size_get()
{
devlink sb pool show "$DEVLINK_DEV" pool 0 -j \
| jq '.pool[][].cell_size'
}