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selftests: spectrum-2: Add delta two masks one key test 

Ensure that the bug is fixed and we no longer have C-TCAM spill for two
keys that differ only in delta.

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>
This commit is contained in:
Jiri Pirko 2019-01-30 08:58:37 +00:00 committed by David S. Miller
parent 0d0f20fb2f
commit 1f0ac761bc
1 changed files with 45 additions and 1 deletions
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46
tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh
View File

@ -9,7 +9,8 @@ lib_dir=$(dirname $0)/../../../../net/forwarding
ALL_TESTS="single_mask_test identical_filters_test two_masks_test \
multiple_masks_test ctcam_edge_cases_test delta_simple_test \
bloom_simple_test bloom_complex_test bloom_delta_test"
delta_two_masks_one_key_test bloom_simple_test \
bloom_complex_test bloom_delta_test"
NUM_NETIFS=2
source $lib_dir/tc_common.sh
source $lib_dir/lib.sh
@ -450,6 +451,49 @@ delta_simple_test()
log_test "delta simple test ($tcflags)"
}
delta_two_masks_one_key_test()
{
# If 2 keys are the same and only differ in mask in a way that
# they belong under the same ERP (second is delta of the first),
# there should be no C-TCAM spill.
RET=0
if [[ "$tcflags" != "skip_sw" ]]; then
return 0;
fi
tp_record "mlxsw:*" "tc filter add dev $h2 ingress protocol ip \
pref 1 handle 101 flower $tcflags dst_ip 192.0.2.0/24 \
action drop"
tp_check_hits "mlxsw:mlxsw_sp_acl_atcam_entry_add_ctcam_spill" 0
check_err $? "incorrect C-TCAM spill while inserting the first rule"
tp_record "mlxsw:*" "tc filter add dev $h2 ingress protocol ip \
pref 2 handle 102 flower $tcflags dst_ip 192.0.2.2 \
action drop"
tp_check_hits "mlxsw:mlxsw_sp_acl_atcam_entry_add_ctcam_spill" 0
check_err $? "incorrect C-TCAM spill while inserting the second rule"
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t ip -q
tc_check_packets "dev $h2 ingress" 101 1
check_err $? "Did not match on correct filter"
tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
-t ip -q
tc_check_packets "dev $h2 ingress" 102 1
check_err $? "Did not match on correct filter"
tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
log_test "delta two masks one key test ($tcflags)"
}
bloom_simple_test()
{
# Bloom filter requires that the eRP table is used. This test