#!/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.
$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"
$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"
$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"
$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"
$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_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"
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"
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"
$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"
# 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 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"
$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
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