Commit 0d0f20fb authored by Jiri Pirko's avatar Jiri Pirko Committed by David S. Miller
Browse files

selftests: spectrum-2: Fix multiple_masks_test 



With recent fix in C-TCAM spillage for delta masks, the test stops to be
falsely positive. So fix it not to use delta by adding src_ip bits to the
masks. Alongside with that, use C-TCAM spill trace to see when the
spillage actually happens.

Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1eadbd3a

tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh

+22 −4
Original line number Diff line number Diff line
@@ -231,20 +231,38 @@ multiple_masks_test() 
	# spillage is performed correctly and that the right filter is

	# matched



	if [[ "$tcflags" != "skip_sw" ]]; then

		return 0;

	fi



	local index



	RET=0



	NUM_MASKS=32

	NUM_ERPS=16

	BASE_INDEX=100



	for i in $(eval echo {1..$NUM_MASKS}); do

		index=$((BASE_INDEX - i))



		tc filter add dev $h2 ingress protocol ip pref $index \

		if ((i > NUM_ERPS)); then

			exp_hits=1

			err_msg="$i filters - C-TCAM spill did not happen when it was expected"

		else

			exp_hits=0

			err_msg="$i filters - C-TCAM spill happened when it should not"

		fi



		tp_record "mlxsw:mlxsw_sp_acl_atcam_entry_add_ctcam_spill" \

			"tc filter add dev $h2 ingress protocol ip pref $index \

				handle $index \

			flower $tcflags dst_ip 192.0.2.2/${i} src_ip 192.0.2.1 \

			action drop

				flower $tcflags \

				dst_ip 192.0.2.2/${i} src_ip 192.0.2.1/${i} \

				action drop"

		tp_check_hits "mlxsw:mlxsw_sp_acl_atcam_entry_add_ctcam_spill" \

				$exp_hits

		check_err $? "$err_msg"



		$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 \

			-B 192.0.2.2 -t ip -q

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