Commit 3dd91570 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

selftests: mlxsw: Add TC flower test for Spectrum-2 



Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Reviewed-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c86d62cc

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

0 → 100755
+366 −0
Original line number Original line Diff line number Diff line 
#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



# This test is for checking the A-TCAM and C-TCAM operation in Spectrum-2.

# It tries to exercise as many code paths in the eRP state machine as

# possible.



lib_dir=$(dirname $0)/../../../../net/forwarding



ALL_TESTS="single_mask_test identical_filters_test two_masks_test \

	multiple_masks_test ctcam_edge_cases_test"

NUM_NETIFS=2

source $lib_dir/tc_common.sh

source $lib_dir/lib.sh



tcflags="skip_hw"



h1_create()

{

	simple_if_init $h1 192.0.2.1/24 198.51.100.1/24

}



h1_destroy()

{

	simple_if_fini $h1 192.0.2.1/24 198.51.100.1/24

}



h2_create()

{

	simple_if_init $h2 192.0.2.2/24 198.51.100.2/24

	tc qdisc add dev $h2 clsact

}



h2_destroy()

{

	tc qdisc del dev $h2 clsact

	simple_if_fini $h2 192.0.2.2/24 198.51.100.2/24

}



single_mask_test()

{

	# When only a single mask is required, the device uses the master

	# mask and not the eRP table. Verify that under this mode the right

	# filter is matched



	RET=0



	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \

		$tcflags dst_ip 192.0.2.2 action drop



	$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 $? "Single filter - did not match"



	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \

		$tcflags dst_ip 198.51.100.2 action drop



	$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 2

	check_err $? "Two filters - did not match highest priority"



	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 198.51.100.1 -B 198.51.100.2 \

		-t ip -q



	tc_check_packets "dev $h2 ingress" 102 1

	check_err $? "Two filters - did not match lowest priority"



	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower



	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 198.51.100.1 -B 198.51.100.2 \

		-t ip -q



	tc_check_packets "dev $h2 ingress" 102 2

	check_err $? "Single filter - did not match after delete"



	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower



	log_test "single mask test ($tcflags)"

}



identical_filters_test()

{

	# When two filters that only differ in their priority are used,

	# one needs to be inserted into the C-TCAM. This test verifies

	# that filters are correctly spilled to C-TCAM and that the right

	# filter is matched



	RET=0



	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \

		$tcflags dst_ip 192.0.2.2 action drop

	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \

		$tcflags dst_ip 192.0.2.2 action drop



	$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 A-TCAM 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 C-TCAM filter after A-TCAM delete"



	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \

		$tcflags dst_ip 192.0.2.2 action drop



	$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 2

	check_err $? "Did not match C-TCAM filter after A-TCAM add"



	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 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" 103 1

	check_err $? "Did not match A-TCAM filter after C-TCAM delete"



	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower



	log_test "identical filters test ($tcflags)"

}



two_masks_test()

{

	# When more than one mask is required, the eRP table is used. This

	# test verifies that the eRP table is correctly allocated and used



	RET=0



	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \

		$tcflags dst_ip 192.0.2.2 action drop

	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \

		$tcflags dst_ip 192.0.0.0/16 action drop



	$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 $? "Two filters - did not match highest priority"



	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" 103 1

	check_err $? "Single filter - did not match"



	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \

		$tcflags dst_ip 192.0.2.0/24 action drop



	$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 $? "Two filters - did not match highest priority after add"



	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower

	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower



	log_test "two masks test ($tcflags)"

}



multiple_masks_test()

{

	# The number of masks in a region is limited. Once the maximum

	# number of masks has been reached filters that require new

	# masks are spilled to the C-TCAM. This test verifies that

	# spillage is performed correctly and that the right filter is

	# matched



	local index



	RET=0



	NUM_MASKS=32

	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 \

			handle $index \

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

			action drop



		$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" $index 1

		check_err $? "$i filters - did not match highest priority (add)"

	done



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

		index=$((BASE_INDEX - i))



		$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" $index 2

		check_err $? "$i filters - did not match highest priority (del)"



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

			handle $index flower

	done



	log_test "multiple masks test ($tcflags)"

}



ctcam_two_atcam_masks_test()

{

	RET=0



	# First case: C-TCAM is disabled when there are two A-TCAM masks.

	# We push a filter into the C-TCAM by using two identical filters

	# as in identical_filters_test()



	# Filter goes into A-TCAM

	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \

		$tcflags dst_ip 192.0.2.2 action drop

	# Filter goes into C-TCAM

	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \

		$tcflags dst_ip 192.0.2.2 action drop

	# Filter goes into A-TCAM

	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \

		$tcflags dst_ip 192.0.2.0/24 action drop



	$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 A-TCAM filter"



	# Delete both A-TCAM and C-TCAM filters and make sure the remaining

	# A-TCAM filter still works

	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower

	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" 103 1

	check_err $? "Did not match A-TCAM filter"



	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower



	log_test "ctcam with two atcam masks test ($tcflags)"

}



ctcam_one_atcam_mask_test()

{

	RET=0



	# Second case: C-TCAM is disabled when there is one A-TCAM mask.

	# The test is similar to identical_filters_test()



	# Filter goes into A-TCAM

	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \

		$tcflags dst_ip 192.0.2.2 action drop

	# Filter goes into C-TCAM

	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \

		$tcflags dst_ip 192.0.2.2 action drop



	$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 C-TCAM 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 A-TCAM filter"



	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower



	log_test "ctcam with one atcam mask test ($tcflags)"

}



ctcam_no_atcam_masks_test()

{

	RET=0



	# Third case: C-TCAM is disabled when there are no A-TCAM masks

	# This test exercises the code path that transitions the eRP table

	# to its initial state after deleting the last C-TCAM mask



	# Filter goes into A-TCAM

	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \

		$tcflags dst_ip 192.0.2.2 action drop

	# Filter goes into C-TCAM

	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \

		$tcflags dst_ip 192.0.2.2 action drop



	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower

	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower



	log_test "ctcam with no atcam masks test ($tcflags)"

}



ctcam_edge_cases_test()

{

	# When the C-TCAM is disabled after deleting the last C-TCAM

	# mask, we want to make sure the eRP state machine is put in

	# the correct state



	ctcam_two_atcam_masks_test

	ctcam_one_atcam_mask_test

	ctcam_no_atcam_masks_test

}



setup_prepare()

{

	h1=${NETIFS[p1]}

	h2=${NETIFS[p2]}

	h1mac=$(mac_get $h1)

	h2mac=$(mac_get $h2)



	vrf_prepare



	h1_create

	h2_create

}



cleanup()

{

	pre_cleanup



	h2_destroy

	h1_destroy



	vrf_cleanup

}



trap cleanup EXIT



setup_prepare

setup_wait



tests_run



if ! tc_offload_check; then

	check_err 1 "Could not test offloaded functionality"

	log_test "mlxsw-specific tests for tc flower"

	exit

else

	tcflags="skip_sw"

	tests_run

fi



exit $EXIT_STATUS

CRA Git | Maintained and supported by SUSTech CRA and CCSE