Commit be00853b authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

selftests: mlxsw: Add a RIF counter scale test 



This tests creates as many RIFs as possible, ideally more than there can be
RIF counters (though that is currently only possible on Spectrum-1). It
then tries to enable L3 HW stats on each of the RIFs. It also contains the
traffic test, which tries to run traffic through a log2 of those counters
and checks that the traffic is shown in the counter values.

Like with tc_flower traffic test, take a log2 subset of rules. The logic
behind picking log2 rules is that then every bit of the instantiated item's
number is exercised. This should catch issues whether they happen at the
high end, low end, or somewhere in between.

Signed-off-by: default avatarPetr Machata <petrm@nvidia.com>
Reviewed-by: default avatarAmit Cohen <amcohen@nvidia.com>
Signed-off-by: default avatarIdo Schimmel <idosch@nvidia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent dd5d20e1

tools/testing/selftests/drivers/net/mlxsw/rif_counter_scale.sh

0 → 100644
+107 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0



RIF_COUNTER_NUM_NETIFS=2



rif_counter_addr4()

{

	local i=$1; shift

	local p=$1; shift



	printf 192.0.%d.%d $((i / 64)) $(((4 * i % 256) + p))

}



rif_counter_addr4pfx()

{

	rif_counter_addr4 $@

	printf /30

}



rif_counter_h1_create()

{

	simple_if_init $h1

}



rif_counter_h1_destroy()

{

	simple_if_fini $h1

}



rif_counter_h2_create()

{

	simple_if_init $h2

}



rif_counter_h2_destroy()

{

	simple_if_fini $h2

}



rif_counter_setup_prepare()

{

	h1=${NETIFS[p1]}

	h2=${NETIFS[p2]}



	vrf_prepare



	rif_counter_h1_create

	rif_counter_h2_create

}



rif_counter_cleanup()

{

	local count=$1; shift



	pre_cleanup



	for ((i = 1; i <= count; i++)); do

		vlan_destroy $h2 $i

	done



	rif_counter_h2_destroy

	rif_counter_h1_destroy



	vrf_cleanup



	if [[ -v RIF_COUNTER_BATCH_FILE ]]; then

		rm -f $RIF_COUNTER_BATCH_FILE

	fi

}





rif_counter_test()

{

	local count=$1; shift

	local should_fail=$1; shift



	RIF_COUNTER_BATCH_FILE="$(mktemp)"



	for ((i = 1; i <= count; i++)); do

		vlan_create $h2 $i v$h2 $(rif_counter_addr4pfx $i 2)

	done

	for ((i = 1; i <= count; i++)); do

		cat >> $RIF_COUNTER_BATCH_FILE <<-EOF

			stats set dev $h2.$i l3_stats on

		EOF

	done



	ip -b $RIF_COUNTER_BATCH_FILE

	check_err_fail $should_fail $? "RIF counter enablement"

}



rif_counter_traffic_test()

{

	local count=$1; shift

	local i;



	for ((i = count; i > 0; i /= 2)); do

		$MZ $h1 -Q $i -c 1 -d 20msec -p 100 -a own -b $(mac_get $h2) \

		    -A $(rif_counter_addr4 $i 1) \

		    -B $(rif_counter_addr4 $i 2) \

		    -q -t udp sp=54321,dp=12345

	done

	for ((i = count; i > 0; i /= 2)); do

		busywait "$TC_HIT_TIMEOUT" until_counter_is "== 1" \

			 hw_stats_get l3_stats $h2.$i rx packets > /dev/null

		check_err $? "Traffic not seen at RIF $h2.$i"

	done

}

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

+10 −1
Original line number Diff line number Diff line
@@ -25,7 +25,16 @@ cleanup() 


trap cleanup EXIT



ALL_TESTS="router tc_flower mirror_gre tc_police port rif_mac_profile"

ALL_TESTS="

	router

	tc_flower

	mirror_gre

	tc_police

	port

	rif_mac_profile

	rif_counter

"



for current_test in ${TESTS:-$ALL_TESTS}; do

	RET_FIN=0

	source ${current_test}_scale.sh

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

0 → 120000
+1 −0
Original line number Diff line number Diff line 
../spectrum/rif_counter_scale.sh
 
 No newline at end of file

tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh

+10 −1
Original line number Diff line number Diff line
@@ -22,7 +22,16 @@ cleanup() 
devlink_sp_read_kvd_defaults

trap cleanup EXIT



ALL_TESTS="router tc_flower mirror_gre tc_police port rif_mac_profile"

ALL_TESTS="

	router

	tc_flower

	mirror_gre

	tc_police

	port

	rif_mac_profile

	rif_counter

"



for current_test in ${TESTS:-$ALL_TESTS}; do

	RET_FIN=0

	source ${current_test}_scale.sh

tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_counter_scale.sh

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# SPDX-License-Identifier: GPL-2.0

source ../rif_counter_scale.sh



rif_counter_get_target()

{

	local should_fail=$1; shift

	local max_cnts

	local max_rifs

	local target



	max_rifs=$(devlink_resource_size_get rifs)

	max_cnts=$(devlink_resource_size_get counters rif)



	# Remove already allocated RIFs.

	((max_rifs -= $(devlink_resource_occ_get rifs)))



	# 10 KVD slots per counter, ingress+egress counters per RIF

	((max_cnts /= 20))



	# Pointless to run the overflow test if we don't have enough RIFs to

	# host all the counters.

	if ((max_cnts > max_rifs && should_fail)); then

		echo 0

		return

	fi



	target=$((max_rifs < max_cnts ? max_rifs : max_cnts))



	if ((! should_fail)); then

		echo $target

	else

		echo $((target + 1))

	fi

}