Ido Schimmel b8a07c4cea selftests: netdevsim: Add test for resilient nexthop groups offload API
Test various aspects of the resilient nexthop group offload API on top
of the netdevsim implementation. Both good and bad flows are tested.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Co-developed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-12 17:44:10 -08:00

1057 lines
26 KiB
Bash
Executable File

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# This test is for checking the nexthop offload API. It makes use of netdevsim
# which registers a listener to the nexthop notification chain.
lib_dir=$(dirname $0)/../../../net/forwarding
ALL_TESTS="
nexthop_single_add_test
nexthop_single_add_err_test
nexthop_group_add_test
nexthop_group_add_err_test
nexthop_res_group_add_test
nexthop_res_group_add_err_test
nexthop_group_replace_test
nexthop_group_replace_err_test
nexthop_res_group_replace_test
nexthop_res_group_replace_err_test
nexthop_res_group_idle_timer_test
nexthop_res_group_idle_timer_del_test
nexthop_res_group_increase_idle_timer_test
nexthop_res_group_decrease_idle_timer_test
nexthop_res_group_unbalanced_timer_test
nexthop_res_group_unbalanced_timer_del_test
nexthop_res_group_no_unbalanced_timer_test
nexthop_res_group_short_unbalanced_timer_test
nexthop_res_group_increase_unbalanced_timer_test
nexthop_res_group_decrease_unbalanced_timer_test
nexthop_res_group_force_migrate_busy_test
nexthop_single_replace_test
nexthop_single_replace_err_test
nexthop_single_in_group_replace_test
nexthop_single_in_group_replace_err_test
nexthop_single_in_res_group_replace_test
nexthop_single_in_res_group_replace_err_test
nexthop_single_in_group_delete_test
nexthop_single_in_group_delete_err_test
nexthop_single_in_res_group_delete_test
nexthop_single_in_res_group_delete_err_test
nexthop_replay_test
nexthop_replay_err_test
"
NETDEVSIM_PATH=/sys/bus/netdevsim/
DEV_ADDR=1337
DEV=netdevsim${DEV_ADDR}
DEVLINK_DEV=netdevsim/${DEV}
SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
DEBUGFS_NET_DIR=/sys/kernel/debug/netdevsim/$DEV/
NUM_NETIFS=0
source $lib_dir/lib.sh
source $lib_dir/devlink_lib.sh
nexthop_check()
{
local nharg="$1"; shift
local expected="$1"; shift
out=$($IP nexthop show ${nharg} | sed -e 's/ *$//')
if [[ "$out" != "$expected" ]]; then
return 1
fi
return 0
}
nexthop_bucket_nhid_count_check()
{
local group_id=$1; shift
local expected
local count
local nhid
local ret
while (($# > 0)); do
nhid=$1; shift
expected=$1; shift
count=$($IP nexthop bucket show id $group_id nhid $nhid |
grep "trap" | wc -l)
if ((expected != count)); then
return 1
fi
done
return 0
}
nexthop_resource_check()
{
local expected_occ=$1; shift
occ=$($DEVLINK -jp resource show $DEVLINK_DEV \
| jq '.[][][] | select(.name=="nexthops") | .["occ"]')
if [ $expected_occ -ne $occ ]; then
return 1
fi
return 0
}
nexthop_resource_set()
{
local size=$1; shift
$DEVLINK resource set $DEVLINK_DEV path nexthops size $size
$DEVLINK dev reload $DEVLINK_DEV
}
nexthop_single_add_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
check_err $? "Unexpected nexthop entry"
nexthop_resource_check 1
check_err $? "Wrong nexthop occupancy"
$IP nexthop del id 1
nexthop_resource_check 0
check_err $? "Wrong nexthop occupancy after delete"
log_test "Single nexthop add and delete"
}
nexthop_single_add_err_test()
{
RET=0
nexthop_resource_set 1
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1 &> /dev/null
check_fail $? "Nexthop addition succeeded when should fail"
nexthop_resource_check 1
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop add failure"
$IP nexthop flush &> /dev/null
nexthop_resource_set 9999
}
nexthop_group_add_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2
nexthop_check "id 10" "id 10 group 1/2 trap"
check_err $? "Unexpected nexthop group entry"
nexthop_resource_check 4
check_err $? "Wrong nexthop occupancy"
$IP nexthop del id 10
nexthop_resource_check 2
check_err $? "Wrong nexthop occupancy after delete"
$IP nexthop add id 10 group 1,20/2,39
nexthop_check "id 10" "id 10 group 1,20/2,39 trap"
check_err $? "Unexpected weighted nexthop group entry"
nexthop_resource_check 61
check_err $? "Wrong weighted nexthop occupancy"
$IP nexthop del id 10
nexthop_resource_check 2
check_err $? "Wrong nexthop occupancy after delete"
log_test "Nexthop group add and delete"
$IP nexthop flush &> /dev/null
}
nexthop_group_add_err_test()
{
RET=0
nexthop_resource_set 2
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2 &> /dev/null
check_fail $? "Nexthop group addition succeeded when should fail"
nexthop_resource_check 2
check_err $? "Wrong nexthop occupancy"
log_test "Nexthop group add failure"
$IP nexthop flush &> /dev/null
nexthop_resource_set 9999
}
nexthop_res_group_add_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2 type resilient buckets 4
nexthop_check "id 10" "id 10 group 1/2 type resilient buckets 4 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
check_err $? "Unexpected nexthop group entry"
nexthop_bucket_nhid_count_check 10 1 2
check_err $? "Wrong nexthop buckets count"
nexthop_bucket_nhid_count_check 10 2 2
check_err $? "Wrong nexthop buckets count"
nexthop_resource_check 6
check_err $? "Wrong nexthop occupancy"
$IP nexthop del id 10
nexthop_resource_check 2
check_err $? "Wrong nexthop occupancy after delete"
$IP nexthop add id 10 group 1,3/2,2 type resilient buckets 5
nexthop_check "id 10" "id 10 group 1,3/2,2 type resilient buckets 5 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
check_err $? "Unexpected weighted nexthop group entry"
nexthop_bucket_nhid_count_check 10 1 3
check_err $? "Wrong nexthop buckets count"
nexthop_bucket_nhid_count_check 10 2 2
check_err $? "Wrong nexthop buckets count"
nexthop_resource_check 7
check_err $? "Wrong weighted nexthop occupancy"
$IP nexthop del id 10
nexthop_resource_check 2
check_err $? "Wrong nexthop occupancy after delete"
log_test "Resilient nexthop group add and delete"
$IP nexthop flush &> /dev/null
}
nexthop_res_group_add_err_test()
{
RET=0
nexthop_resource_set 2
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2 type resilient buckets 4 &> /dev/null
check_fail $? "Nexthop group addition succeeded when should fail"
nexthop_resource_check 2
check_err $? "Wrong nexthop occupancy"
log_test "Resilient nexthop group add failure"
$IP nexthop flush &> /dev/null
nexthop_resource_set 9999
}
nexthop_group_replace_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.4 dev dummy1
$IP nexthop add id 10 group 1/2
$IP nexthop replace id 10 group 1/2/3
nexthop_check "id 10" "id 10 group 1/2/3 trap"
check_err $? "Unexpected nexthop group entry"
nexthop_resource_check 6
check_err $? "Wrong nexthop occupancy"
log_test "Nexthop group replace"
$IP nexthop flush &> /dev/null
}
nexthop_group_replace_err_test()
{
RET=0
nexthop_resource_set 5
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.4 dev dummy1
$IP nexthop add id 10 group 1/2
$IP nexthop replace id 10 group 1/2/3 &> /dev/null
check_fail $? "Nexthop group replacement succeeded when should fail"
nexthop_check "id 10" "id 10 group 1/2 trap"
check_err $? "Unexpected nexthop group entry after failure"
nexthop_resource_check 5
check_err $? "Wrong nexthop occupancy after failure"
log_test "Nexthop group replace failure"
$IP nexthop flush &> /dev/null
nexthop_resource_set 9999
}
nexthop_res_group_replace_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.4 dev dummy1
$IP nexthop add id 10 group 1/2 type resilient buckets 6
$IP nexthop replace id 10 group 1/2/3 type resilient
nexthop_check "id 10" "id 10 group 1/2/3 type resilient buckets 6 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
check_err $? "Unexpected nexthop group entry"
nexthop_bucket_nhid_count_check 10 1 2
check_err $? "Wrong nexthop buckets count"
nexthop_bucket_nhid_count_check 10 2 2
check_err $? "Wrong nexthop buckets count"
nexthop_bucket_nhid_count_check 10 3 2
check_err $? "Wrong nexthop buckets count"
nexthop_resource_check 9
check_err $? "Wrong nexthop occupancy"
log_test "Resilient nexthop group replace"
$IP nexthop flush &> /dev/null
}
nexthop_res_group_replace_err_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.4 dev dummy1
$IP nexthop add id 10 group 1/2 type resilient buckets 6
ip netns exec testns1 \
echo 1 > $DEBUGFS_NET_DIR/fib/fail_res_nexthop_group_replace
$IP nexthop replace id 10 group 1/2/3 type resilient &> /dev/null
check_fail $? "Nexthop group replacement succeeded when should fail"
nexthop_check "id 10" "id 10 group 1/2 type resilient buckets 6 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
check_err $? "Unexpected nexthop group entry after failure"
nexthop_bucket_nhid_count_check 10 1 3
check_err $? "Wrong nexthop buckets count"
nexthop_bucket_nhid_count_check 10 2 3
check_err $? "Wrong nexthop buckets count"
nexthop_resource_check 9
check_err $? "Wrong nexthop occupancy after failure"
log_test "Resilient nexthop group replace failure"
$IP nexthop flush &> /dev/null
ip netns exec testns1 \
echo 0 > $DEBUGFS_NET_DIR/fib/fail_res_nexthop_group_replace
}
nexthop_res_mark_buckets_busy()
{
local group_id=$1; shift
local nhid=$1; shift
local count=$1; shift
local index
for index in $($IP -j nexthop bucket show id $group_id nhid $nhid |
jq '.[].bucket.index' | head -n ${count:--0})
do
echo $group_id $index \
> $DEBUGFS_NET_DIR/fib/nexthop_bucket_activity
done
}
nexthop_res_num_nhid_buckets()
{
local group_id=$1; shift
local nhid=$1; shift
$IP -j nexthop bucket show id $group_id nhid $nhid | jq length
}
nexthop_res_group_idle_timer_test()
{
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1/2 type resilient buckets 8 idle_timer 4
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1/2,3 type resilient
nexthop_bucket_nhid_count_check 10 1 4 2 4
check_err $? "Group expected to be unbalanced"
sleep 6
nexthop_bucket_nhid_count_check 10 1 2 2 6
check_err $? "Group expected to be balanced"
log_test "Bucket migration after idle timer"
$IP nexthop flush &> /dev/null
}
nexthop_res_group_idle_timer_del_test()
{
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1,50/2,50/3,1 \
type resilient buckets 8 idle_timer 6
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1,50/2,150/3,1 type resilient
nexthop_bucket_nhid_count_check 10 1 4 2 4 3 0
check_err $? "Group expected to be unbalanced"
sleep 4
# Deletion prompts group replacement. Check that the bucket timers
# are kept.
$IP nexthop delete id 3
nexthop_bucket_nhid_count_check 10 1 4 2 4
check_err $? "Group expected to still be unbalanced"
sleep 4
nexthop_bucket_nhid_count_check 10 1 2 2 6
check_err $? "Group expected to be balanced"
log_test "Bucket migration after idle timer (with delete)"
$IP nexthop flush &> /dev/null
}
__nexthop_res_group_increase_timer_test()
{
local timer=$1; shift
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1/2 type resilient buckets 8 $timer 4
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1/2,3 type resilient
nexthop_bucket_nhid_count_check 10 2 6
check_fail $? "Group expected to be unbalanced"
sleep 2
$IP nexthop replace id 10 group 1/2,3 type resilient $timer 8
sleep 4
# 6 seconds, past the original timer.
nexthop_bucket_nhid_count_check 10 2 6
check_fail $? "Group still expected to be unbalanced"
sleep 4
# 10 seconds, past the new timer.
nexthop_bucket_nhid_count_check 10 2 6
check_err $? "Group expected to be balanced"
log_test "Bucket migration after $timer increase"
$IP nexthop flush &> /dev/null
}
__nexthop_res_group_decrease_timer_test()
{
local timer=$1; shift
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1/2 type resilient buckets 8 $timer 8
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1/2,3 type resilient
nexthop_bucket_nhid_count_check 10 2 6
check_fail $? "Group expected to be unbalanced"
sleep 2
$IP nexthop replace id 10 group 1/2,3 type resilient $timer 4
sleep 4
# 6 seconds, past the new timer, before the old timer.
nexthop_bucket_nhid_count_check 10 2 6
check_err $? "Group expected to be balanced"
log_test "Bucket migration after $timer decrease"
$IP nexthop flush &> /dev/null
}
__nexthop_res_group_increase_timer_del_test()
{
local timer=$1; shift
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1,100/2,100/3,1 \
type resilient buckets 8 $timer 4
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1,100/2,300/3,1 type resilient
nexthop_bucket_nhid_count_check 10 2 6
check_fail $? "Group expected to be unbalanced"
sleep 2
$IP nexthop replace id 10 group 1/2,3 type resilient $timer 8
sleep 4
# 6 seconds, past the original timer.
nexthop_bucket_nhid_count_check 10 2 6
check_fail $? "Group still expected to be unbalanced"
sleep 4
# 10 seconds, past the new timer.
nexthop_bucket_nhid_count_check 10 2 6
check_err $? "Group expected to be balanced"
log_test "Bucket migration after $timer increase"
$IP nexthop flush &> /dev/null
}
nexthop_res_group_increase_idle_timer_test()
{
__nexthop_res_group_increase_timer_test idle_timer
}
nexthop_res_group_decrease_idle_timer_test()
{
__nexthop_res_group_decrease_timer_test idle_timer
}
nexthop_res_group_unbalanced_timer_test()
{
local i
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1/2 type resilient \
buckets 8 idle_timer 6 unbalanced_timer 10
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1/2,3 type resilient
for i in 1 2; do
sleep 4
nexthop_bucket_nhid_count_check 10 1 4 2 4
check_err $? "$i: Group expected to be unbalanced"
nexthop_res_mark_buckets_busy 10 1
done
# 3 x sleep 4 > unbalanced timer 10
sleep 4
nexthop_bucket_nhid_count_check 10 1 2 2 6
check_err $? "Group expected to be balanced"
log_test "Bucket migration after unbalanced timer"
$IP nexthop flush &> /dev/null
}
nexthop_res_group_unbalanced_timer_del_test()
{
local i
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1,50/2,50/3,1 type resilient \
buckets 8 idle_timer 6 unbalanced_timer 10
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1,50/2,150/3,1 type resilient
# Check that NH delete does not reset unbalanced time.
sleep 4
$IP nexthop delete id 3
nexthop_bucket_nhid_count_check 10 1 4 2 4
check_err $? "1: Group expected to be unbalanced"
nexthop_res_mark_buckets_busy 10 1
sleep 4
nexthop_bucket_nhid_count_check 10 1 4 2 4
check_err $? "2: Group expected to be unbalanced"
nexthop_res_mark_buckets_busy 10 1
# 3 x sleep 4 > unbalanced timer 10
sleep 4
nexthop_bucket_nhid_count_check 10 1 2 2 6
check_err $? "Group expected to be balanced"
log_test "Bucket migration after unbalanced timer (with delete)"
$IP nexthop flush &> /dev/null
}
nexthop_res_group_no_unbalanced_timer_test()
{
local i
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1/2 type resilient buckets 8
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1/2,3 type resilient
for i in $(seq 3); do
sleep 60
nexthop_bucket_nhid_count_check 10 2 6
check_fail $? "$i: Group expected to be unbalanced"
nexthop_res_mark_buckets_busy 10 1
done
log_test "Buckets never force-migrated without unbalanced timer"
$IP nexthop flush &> /dev/null
}
nexthop_res_group_short_unbalanced_timer_test()
{
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1/2 type resilient \
buckets 8 idle_timer 120 unbalanced_timer 4
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1/2,3 type resilient
nexthop_bucket_nhid_count_check 10 2 6
check_fail $? "Group expected to be unbalanced"
sleep 5
nexthop_bucket_nhid_count_check 10 2 6
check_err $? "Group expected to be balanced"
log_test "Bucket migration after unbalanced < idle timer"
$IP nexthop flush &> /dev/null
}
nexthop_res_group_increase_unbalanced_timer_test()
{
__nexthop_res_group_increase_timer_test unbalanced_timer
}
nexthop_res_group_decrease_unbalanced_timer_test()
{
__nexthop_res_group_decrease_timer_test unbalanced_timer
}
nexthop_res_group_force_migrate_busy_test()
{
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
RET=0
$IP nexthop add id 10 group 1/2 type resilient \
buckets 8 idle_timer 120
nexthop_res_mark_buckets_busy 10 1
$IP nexthop replace id 10 group 1/2,3 type resilient
nexthop_bucket_nhid_count_check 10 2 6
check_fail $? "Group expected to be unbalanced"
$IP nexthop replace id 10 group 2 type resilient
nexthop_bucket_nhid_count_check 10 2 8
check_err $? "All buckets expected to have migrated"
log_test "Busy buckets force-migrated when NH removed"
$IP nexthop flush &> /dev/null
}
nexthop_single_replace_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop replace id 1 via 192.0.2.3 dev dummy1
nexthop_check "id 1" "id 1 via 192.0.2.3 dev dummy1 scope link trap"
check_err $? "Unexpected nexthop entry"
nexthop_resource_check 1
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop replace"
$IP nexthop flush &> /dev/null
}
nexthop_single_replace_err_test()
{
RET=0
# This is supposed to cause the replace to fail because the new nexthop
# is programmed before deleting the replaced one.
nexthop_resource_set 1
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop replace id 1 via 192.0.2.3 dev dummy1 &> /dev/null
check_fail $? "Nexthop replace succeeded when should fail"
nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
check_err $? "Unexpected nexthop entry after failure"
nexthop_resource_check 1
check_err $? "Wrong nexthop occupancy after failure"
log_test "Single nexthop replace failure"
$IP nexthop flush &> /dev/null
nexthop_resource_set 9999
}
nexthop_single_in_group_replace_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2
$IP nexthop replace id 1 via 192.0.2.4 dev dummy1
check_err $? "Failed to replace nexthop when should not"
nexthop_check "id 10" "id 10 group 1/2 trap"
check_err $? "Unexpected nexthop group entry"
nexthop_resource_check 4
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop replace while in group"
$IP nexthop flush &> /dev/null
}
nexthop_single_in_group_replace_err_test()
{
RET=0
nexthop_resource_set 5
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2
$IP nexthop replace id 1 via 192.0.2.4 dev dummy1 &> /dev/null
check_fail $? "Nexthop replacement succeeded when should fail"
nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
check_err $? "Unexpected nexthop entry after failure"
nexthop_check "id 10" "id 10 group 1/2 trap"
check_err $? "Unexpected nexthop group entry after failure"
nexthop_resource_check 4
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop replace while in group failure"
$IP nexthop flush &> /dev/null
nexthop_resource_set 9999
}
nexthop_single_in_res_group_replace_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2 type resilient buckets 4
$IP nexthop replace id 1 via 192.0.2.4 dev dummy1
check_err $? "Failed to replace nexthop when should not"
nexthop_check "id 10" "id 10 group 1/2 type resilient buckets 4 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
check_err $? "Unexpected nexthop group entry"
nexthop_bucket_nhid_count_check 10 1 2 2 2
check_err $? "Wrong nexthop buckets count"
nexthop_resource_check 6
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop replace while in resilient group"
$IP nexthop flush &> /dev/null
}
nexthop_single_in_res_group_replace_err_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2 type resilient buckets 4
ip netns exec testns1 \
echo 1 > $DEBUGFS_NET_DIR/fib/fail_nexthop_bucket_replace
$IP nexthop replace id 1 via 192.0.2.4 dev dummy1 &> /dev/null
check_fail $? "Nexthop replacement succeeded when should fail"
nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
check_err $? "Unexpected nexthop entry after failure"
nexthop_check "id 10" "id 10 group 1/2 type resilient buckets 4 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
check_err $? "Unexpected nexthop group entry after failure"
nexthop_bucket_nhid_count_check 10 1 2 2 2
check_err $? "Wrong nexthop buckets count"
nexthop_resource_check 6
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop replace while in resilient group failure"
$IP nexthop flush &> /dev/null
ip netns exec testns1 \
echo 0 > $DEBUGFS_NET_DIR/fib/fail_nexthop_bucket_replace
}
nexthop_single_in_group_delete_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2
$IP nexthop del id 1
nexthop_check "id 10" "id 10 group 2 trap"
check_err $? "Unexpected nexthop group entry"
nexthop_resource_check 2
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop delete while in group"
$IP nexthop flush &> /dev/null
}
nexthop_single_in_group_delete_err_test()
{
RET=0
# First, nexthop 1 will be deleted, which will reduce the occupancy to
# 5. Afterwards, a replace notification will be sent for nexthop group
# 10 with only two nexthops. Since the new group is allocated before
# the old is deleted, the replacement will fail as it will result in an
# occupancy of 7.
nexthop_resource_set 6
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.4 dev dummy1
$IP nexthop add id 10 group 1/2/3
$IP nexthop del id 1
nexthop_resource_check 5
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop delete while in group failure"
$IP nexthop flush &> /dev/null
nexthop_resource_set 9999
}
nexthop_single_in_res_group_delete_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2 type resilient buckets 4
$IP nexthop del id 1
nexthop_check "id 10" "id 10 group 2 type resilient buckets 4 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
check_err $? "Unexpected nexthop group entry"
nexthop_bucket_nhid_count_check 10 2 4
check_err $? "Wrong nexthop buckets count"
nexthop_resource_check 5
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop delete while in resilient group"
$IP nexthop flush &> /dev/null
}
nexthop_single_in_res_group_delete_err_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 3 via 192.0.2.4 dev dummy1
$IP nexthop add id 10 group 1/2/3 type resilient buckets 6
ip netns exec testns1 \
echo 1 > $DEBUGFS_NET_DIR/fib/fail_nexthop_bucket_replace
$IP nexthop del id 1
# We failed to replace the two nexthop buckets that were originally
# assigned to nhid 1.
nexthop_bucket_nhid_count_check 10 2 2 3 2
check_err $? "Wrong nexthop buckets count"
nexthop_resource_check 8
check_err $? "Wrong nexthop occupancy"
log_test "Single nexthop delete while in resilient group failure"
$IP nexthop flush &> /dev/null
ip netns exec testns1 \
echo 0 > $DEBUGFS_NET_DIR/fib/fail_nexthop_bucket_replace
}
nexthop_replay_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2
$DEVLINK dev reload $DEVLINK_DEV
check_err $? "Failed to reload when should not"
nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
check_err $? "Unexpected nexthop entry after reload"
nexthop_check "id 2" "id 2 via 192.0.2.3 dev dummy1 scope link trap"
check_err $? "Unexpected nexthop entry after reload"
nexthop_check "id 10" "id 10 group 1/2 trap"
check_err $? "Unexpected nexthop group entry after reload"
nexthop_resource_check 4
check_err $? "Wrong nexthop occupancy"
log_test "Nexthop replay"
$IP nexthop flush &> /dev/null
}
nexthop_replay_err_test()
{
RET=0
$IP nexthop add id 1 via 192.0.2.2 dev dummy1
$IP nexthop add id 2 via 192.0.2.3 dev dummy1
$IP nexthop add id 10 group 1/2
# Reduce size of nexthop resource so that reload will fail.
$DEVLINK resource set $DEVLINK_DEV path nexthops size 3
$DEVLINK dev reload $DEVLINK_DEV &> /dev/null
check_fail $? "Reload succeeded when should fail"
$DEVLINK resource set $DEVLINK_DEV path nexthops size 9999
$DEVLINK dev reload $DEVLINK_DEV
check_err $? "Failed to reload when should not"
log_test "Nexthop replay failure"
$IP nexthop flush &> /dev/null
}
setup_prepare()
{
local netdev
modprobe netdevsim &> /dev/null
echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
while [ ! -d $SYSFS_NET_DIR ] ; do :; done
set -e
ip netns add testns1
devlink dev reload $DEVLINK_DEV netns testns1
IP="ip -netns testns1"
DEVLINK="devlink -N testns1"
$IP link add name dummy1 up type dummy
$IP address add 192.0.2.1/24 dev dummy1
set +e
}
cleanup()
{
pre_cleanup
ip netns del testns1
echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
modprobe -r netdevsim &> /dev/null
}
trap cleanup EXIT
setup_prepare
tests_run
exit $EXIT_STATUS