selftests: mlxsw: spectrum-2: Add massive delta rehash test

Do insertions and removal of filters during rehash in higher volumes.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh
index f454b3c..a372b2f 100755 (executable)
--- a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh
@@ -644,6 +644,172 @@ delta_simple_ipv6_rehash_test()
        log_test "delta simple IPv6 rehash test ($tcflags)"
 }
 
+TEST_RULE_BASE=256
+declare -a test_rules_inserted
+
+test_rule_add()
+{
+       local iface=$1
+       local tcflags=$2
+       local index=$3
+
+       if ! [ ${test_rules_inserted[$index]} ] ; then
+               test_rules_inserted[$index]=false
+       fi
+       if ${test_rules_inserted[$index]} ; then
+               return
+       fi
+
+       local number=$(( $index + $TEST_RULE_BASE ))
+       printf -v hexnumber '%x' $number
+
+       batch="${batch}filter add dev $iface ingress protocol ipv6 pref 1 \
+               handle $number flower $tcflags \
+               src_ip 2001:db8:1::$hexnumber action drop\n"
+       test_rules_inserted[$index]=true
+}
+
+test_rule_del()
+{
+       local iface=$1
+       local index=$2
+
+       if ! [ ${test_rules_inserted[$index]} ] ; then
+               test_rules_inserted[$index]=false
+       fi
+       if ! ${test_rules_inserted[$index]} ; then
+               return
+       fi
+
+       local number=$(( $index + $TEST_RULE_BASE ))
+       printf -v hexnumber '%x' $number
+
+       batch="${batch}filter del dev $iface ingress protocol ipv6 pref 1 \
+               handle $number flower\n"
+       test_rules_inserted[$index]=false
+}
+
+test_rule_add_or_remove()
+{
+       local iface=$1
+       local tcflags=$2
+       local index=$3
+
+       if ! [ ${test_rules_inserted[$index]} ] ; then
+               test_rules_inserted[$index]=false
+       fi
+       if ${test_rules_inserted[$index]} ; then
+               test_rule_del $iface $index
+       else
+               test_rule_add $iface $tcflags $index
+       fi
+}
+
+test_rule_add_or_remove_random_batch()
+{
+       local iface=$1
+       local tcflags=$2
+       local total_count=$3
+       local skip=0
+       local count=0
+       local MAXSKIP=20
+       local MAXCOUNT=20
+
+       for ((i=1;i<=total_count;i++)); do
+               if (( $skip == 0 )) && (($count == 0)); then
+                       ((skip=$RANDOM % $MAXSKIP + 1))
+                       ((count=$RANDOM % $MAXCOUNT + 1))
+               fi
+               if (( $skip != 0 )); then
+                       ((skip-=1))
+               else
+                       ((count-=1))
+                       test_rule_add_or_remove $iface $tcflags $i
+               fi
+       done
+}
+
+delta_massive_ipv6_rehash_test()
+{
+       RET=0
+
+       if [[ "$tcflags" != "skip_sw" ]]; then
+               return 0;
+       fi
+
+       devlink dev param set $DEVLINK_DEV \
+               name acl_region_rehash_interval cmode runtime value 0
+       check_err $? "Failed to set ACL region rehash interval"
+
+       tp_record_all mlxsw:mlxsw_sp_acl_tcam_vregion_rehash 7
+       tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_rehash
+       check_fail $? "Rehash trace was hit even when rehash should be disabled"
+
+       RANDOM=4432897
+       declare batch=""
+       test_rule_add_or_remove_random_batch $h2 $tcflags 5000
+
+       echo -n -e $batch | tc -b -
+
+       declare batch=""
+       test_rule_add_or_remove_random_batch $h2 $tcflags 5000
+
+       devlink dev param set $DEVLINK_DEV \
+               name acl_region_rehash_interval cmode runtime value 3000
+       check_err $? "Failed to set ACL region rehash interval"
+
+       sleep 1
+
+       tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 101 flower \
+               $tcflags dst_ip 2001:db8:1::0/121 action drop
+       tc filter add dev $h2 ingress protocol ipv6 pref 2 handle 102 flower \
+               $tcflags dst_ip 2001:db8:2::2 action drop
+       tc filter add dev $h2 ingress protocol ipv6 pref 3 handle 103 flower \
+               $tcflags dst_ip 2001:db8:3::0/120 action drop
+
+       $MZ $h1 -6 -c 1 -p 64 -a $h1mac -b $h2mac \
+               -A 2001:db8:2::1 -B 2001:db8:2::2 -t udp -q
+
+       tc_check_packets "dev $h2 ingress" 101 1
+       check_fail $? "Matched a wrong filter"
+
+       tc_check_packets "dev $h2 ingress" 103 1
+       check_fail $? "Matched a wrong filter"
+
+       tc_check_packets "dev $h2 ingress" 102 1
+       check_err $? "Did not match on correct filter"
+
+       echo -n -e $batch | tc -b -
+
+       devlink dev param set $DEVLINK_DEV \
+               name acl_region_rehash_interval cmode runtime value 0
+       check_err $? "Failed to set ACL region rehash interval"
+
+       $MZ $h1 -6 -c 1 -p 64 -a $h1mac -b $h2mac \
+               -A 2001:db8:2::1 -B 2001:db8:2::2 -t udp -q
+
+       tc_check_packets "dev $h2 ingress" 101 1
+       check_fail $? "Matched a wrong filter after rehash"
+
+       tc_check_packets "dev $h2 ingress" 103 1
+       check_fail $? "Matched a wrong filter after rehash"
+
+       tc_check_packets "dev $h2 ingress" 102 2
+       check_err $? "Did not match on correct filter after rehash"
+
+       tc filter del dev $h2 ingress protocol ipv6 pref 3 handle 103 flower
+       tc filter del dev $h2 ingress protocol ipv6 pref 2 handle 102 flower
+       tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 101 flower
+
+       declare batch=""
+       for i in {1..5000}; do
+               test_rule_del $h2 $tcflags $i
+       done
+       echo -e $batch | tc -b -
+
+       log_test "delta massive IPv6 rehash test ($tcflags)"
+}
+
 bloom_simple_test()
 {
        # Bloom filter requires that the eRP table is used. This test