Commit 8fb6ac45 authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

selftests: mlxsw: RED: Test offload of trapping on RED qevents 



Add a selftest for RED early_drop and mark qevents when a trap action is
attached at the associated block.

Signed-off-by: default avatarPetr Machata <petrm@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 54a92385

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

+29 −6
Original line number Diff line number Diff line
@@ -568,17 +568,12 @@ do_drop_test() 
	busywait 1100 until_counter_is ">= $((base + 1))" $fetch_counter >/dev/null

	check_fail $? "Spurious packets observed without buffer pressure"



	qevent_rule_uninstall_$subtest



	# Push to the queue until it's at the limit. The configured limit is

	# rounded by the qdisc and then by the driver, so this is the best we

	# can do to get to the real limit of the system. Do this with the rules

	# uninstalled so that the inevitable drops don't get counted.

	# can do to get to the real limit of the system.

	build_backlog $vlan $((3 * limit / 2)) udp >/dev/null



	qevent_rule_install_$subtest

	base=$($fetch_counter)



	send_packets $vlan udp 11



	now=$(busywait 1100 until_counter_is ">= $((base + 10))" $fetch_counter)
@@ -631,3 +626,31 @@ do_drop_mirror_test() 


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

}



qevent_rule_install_trap()

{

	tc filter add block 10 pref 1234 handle 102 matchall skip_sw \

	   action trap hw_stats disabled

}



qevent_rule_uninstall_trap()

{

	tc filter del block 10 pref 1234 handle 102 matchall

}



qevent_counter_fetch_trap()

{

	local trap_name=$1; shift



	devlink_trap_rx_packets_get "$trap_name"

}



do_drop_trap_test()

{

	local vlan=$1; shift

	local limit=$1; shift

	local trap_name=$1; shift



	do_drop_test "$vlan" "$limit" "$trap_name" trap \

		     "qevent_counter_fetch_trap $trap_name"

}

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

+11 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ ALL_TESTS=" 
	red_test

	mc_backlog_test

	red_mirror_test

	red_trap_test

"

: ${QDISC:=ets}

source sch_red_core.sh
@@ -94,6 +95,16 @@ red_mirror_test() 
	uninstall_qdisc

}



red_trap_test()

{

	install_qdisc qevent early_drop block 10



	do_drop_trap_test 10 $BACKLOG1 early_drop

	do_drop_trap_test 11 $BACKLOG2 early_drop



	uninstall_qdisc

}



trap cleanup EXIT



setup_prepare