Merge branch 'mlxsw-selftests-updates'

Ido Schimmel says:

====================
selftests: mlxsw: Various updates

This patchset contains various updates to mlxsw selftests.

Patch #1 replaces open-coded compatibility checks with dedicated
helpers. These helpers are used to skip tests when run on incompatible
machines.

Patch #2 avoids spurious failures in some tests by using permanent
neighbours instead of reachable ones.

Patch #3 reduces the run time of a test by not iterating over all the
available trap policers.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -87,6 +87,7 @@ ALL_TESTS="
 NUM_NETIFS=4
 source $lib_dir/lib.sh
 source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
 
 h1_create()
 {
@@ -626,8 +627,7 @@ ipv6_redirect_test()
 
 ptp_event_test()
 {
-	# PTP is only supported on Spectrum-1, for now.
-	[[ "$DEVLINK_VIDDID" != "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 1 || return
 
 	# PTP Sync (0)
 	devlink_trap_stats_test "PTP Time-Critical Event Message" "ptp_event" \
@@ -638,8 +638,7 @@ ptp_event_test()
 
 ptp_general_test()
 {
-	# PTP is only supported on Spectrum-1, for now.
-	[[ "$DEVLINK_VIDDID" != "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 1 || return
 
 	# PTP Announce (b)
 	devlink_trap_stats_test "PTP General Message" "ptp_general" \

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

@@ -272,13 +272,17 @@ __rate_test()
 
 rate_test()
 {
-	local id
+	local last_policer=$(devlink -j -p trap policer show |
+			     jq '[.[]["'$DEVLINK_DEV'"][].policer] | max')
 
-	for id in $(devlink_trap_policer_ids_get); do
-		echo
-		log_info "Running rate test for policer $id"
-		__rate_test $id
-	done
+	log_info "Running rate test for policer 1"
+	__rate_test 1
+
+	log_info "Running rate test for policer $((last_policer / 2))"
+	__rate_test $((last_policer / 2))
+
+	log_info "Running rate test for policer $last_policer"
+	__rate_test $last_policer
 }
 
 __burst_test()
@@ -342,13 +346,17 @@ __burst_test()
 
 burst_test()
 {
-	local id
+	local last_policer=$(devlink -j -p trap policer show |
+			     jq '[.[]["'$DEVLINK_DEV'"][].policer] | max')
+
+	log_info "Running burst test for policer 1"
+	__burst_test 1
+
+	log_info "Running burst test for policer $((last_policer / 2))"
+	__burst_test $((last_policer / 2))
 
-	for id in $(devlink_trap_policer_ids_get); do
-		echo
-		log_info "Running burst size test for policer $id"
-		__burst_test $id
-	done
+	log_info "Running burst test for policer $last_policer"
+	__burst_test $last_policer
 }
 
 trap cleanup EXIT

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

@@ -11,3 +11,53 @@ if [[ ! -v MLXSW_CHIP ]]; then
 		exit 1
 	fi
 fi
+
+MLXSW_SPECTRUM_REV=$(case $MLXSW_CHIP in
+			     mlxsw_spectrum)
+				     echo 1 ;;
+			     mlxsw_spectrum*)
+				     echo ${MLXSW_CHIP#mlxsw_spectrum} ;;
+			     *)
+				     echo "Couldn't determine Spectrum chip revision." \
+					  > /dev/stderr ;;
+		     esac)
+
+mlxsw_on_spectrum()
+{
+	local rev=$1; shift
+	local op="=="
+	local rev2=${rev%+}
+
+	if [[ $rev2 != $rev ]]; then
+		op=">="
+	fi
+
+	((MLXSW_SPECTRUM_REV $op rev2))
+}
+
+__mlxsw_only_on_spectrum()
+{
+	local rev=$1; shift
+	local caller=$1; shift
+	local src=$1; shift
+
+	if ! mlxsw_on_spectrum "$rev"; then
+		log_test_skip $src:$caller "(Spectrum-$rev only)"
+		return 1
+	fi
+}
+
+mlxsw_only_on_spectrum()
+{
+	local caller=${FUNCNAME[1]}
+	local src=${BASH_SOURCE[1]}
+	local rev
+
+	for rev in "$@"; do
+		if __mlxsw_only_on_spectrum "$rev" "$caller" "$src"; then
+			return 0
+		fi
+	done
+
+	return 1
+}

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

@@ -779,7 +779,7 @@ nexthop_obj_offload_test()
 	setup_wait
 
 	ip nexthop add id 1 via 192.0.2.2 dev $swp1
-	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
 
 	busywait "$TIMEOUT" wait_for_offload \
@@ -791,7 +791,7 @@ nexthop_obj_offload_test()
 		ip nexthop show id 1
 	check_err $? "nexthop marked as offloaded after setting neigh to failed state"
 
-	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
 	busywait "$TIMEOUT" wait_for_offload \
 		ip nexthop show id 1
@@ -828,11 +828,11 @@ nexthop_obj_group_offload_test()
 	ip nexthop add id 1 via 192.0.2.2 dev $swp1
 	ip nexthop add id 2 via 2001:db8:1::2 dev $swp1
 	ip nexthop add id 10 group 1/2
-	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
-	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
-	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
 
 	busywait "$TIMEOUT" wait_for_offload \
@@ -888,11 +888,11 @@ nexthop_obj_bucket_offload_test()
 	ip nexthop add id 1 via 192.0.2.2 dev $swp1
 	ip nexthop add id 2 via 2001:db8:1::2 dev $swp1
 	ip nexthop add id 10 group 1/2 type resilient buckets 32 idle_timer 0
-	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
-	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
-	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
 
 	busywait "$TIMEOUT" wait_for_offload \
@@ -921,7 +921,7 @@ nexthop_obj_bucket_offload_test()
 	check_err $? "nexthop bucket not marked as offloaded after revalidating nexthop"
 
 	# Revalidate nexthop id 2 by changing its neighbour
-	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
 	busywait "$TIMEOUT" wait_for_offload \
 		ip nexthop bucket show nhid 2
@@ -971,9 +971,9 @@ nexthop_obj_route_offload_test()
 	setup_wait
 
 	ip nexthop add id 1 via 192.0.2.2 dev $swp1
-	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
-	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud reachable \
+	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud perm \
 		dev $swp1
 
 	ip route replace 198.51.100.0/24 nhid 1

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

@@ -73,6 +73,7 @@ CHECK_TC="yes"
 lib_dir=$(dirname $0)/../../../net/forwarding
 source $lib_dir/lib.sh
 source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
 source qos_lib.sh
 
 ipaddr()
@@ -479,10 +480,7 @@ do_ecn_test_perband()
 	local vlan=$1; shift
 	local limit=$1; shift
 
-	# Per-band ECN counters are not supported on Spectrum-1 and Spectrum-2.
-	[[ "$DEVLINK_VIDDID" == "15b3:cb84" ||
-	   "$DEVLINK_VIDDID" == "15b3:cf6c" ]] && return
-
+	mlxsw_only_on_spectrum 3+ || return
 	__do_ecn_test get_qdisc_nmarked "$vlan" "$limit" "per-band ECN"
 }
 
@@ -584,6 +582,8 @@ do_mark_test()
 	local should_fail=$1; shift
 	local base
 
+	mlxsw_only_on_spectrum 2+ || return
+
 	RET=0
 
 	start_tcp_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) \
@@ -632,6 +632,8 @@ do_drop_test()
 	local base
 	local now
 
+	mlxsw_only_on_spectrum 2+ || return
+
 	RET=0
 
 	start_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) $h3_mac

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

@@ -7,12 +7,9 @@ NUM_NETIFS=6
 source $lib_dir/lib.sh
 source $lib_dir/tc_common.sh
 source $lib_dir/devlink_lib.sh
+source ../mlxsw_lib.sh
 
-if [[ "$DEVLINK_VIDDID" != "15b3:cf6c" && \
-	"$DEVLINK_VIDDID" != "15b3:cf70" ]]; then
-	echo "SKIP: test is tailored for Mellanox Spectrum-2 and Spectrum-3"
-	exit 1
-fi
+mlxsw_only_on_spectrum 2+ || exit 1
 
 current_test=""
 

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

@@ -2,11 +2,9 @@
 # SPDX-License-Identifier: GPL-2.0
 
 source "../../../../net/forwarding/devlink_lib.sh"
+source ../mlxsw_lib.sh
 
-if [ "$DEVLINK_VIDDID" != "15b3:cb84" ]; then
-	echo "SKIP: test is tailored for Mellanox Spectrum"
-	exit 1
-fi
+mlxsw_only_on_spectrum 1 || exit 1
 
 # Needed for returning to default
 declare -A KVD_DEFAULTS

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

@@ -20,6 +20,7 @@ NUM_NETIFS=2
 source $lib_dir/tc_common.sh
 source $lib_dir/lib.sh
 source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
 
 switch_create()
 {
@@ -169,7 +170,7 @@ matchall_sample_egress_test()
 
 	# It is forbidden in mlxsw driver to have matchall with sample action
 	# bound on egress. Spectrum-1 specific restriction
-	[[ "$DEVLINK_VIDDID" != "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 1 || return
 
 	tc qdisc add dev $swp1 clsact
 

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

@@ -51,6 +51,7 @@ NUM_NETIFS=8
 CAPTURE_FILE=$(mktemp)
 source $lib_dir/lib.sh
 source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
 
 # Available at https://github.com/Mellanox/libpsample
 require_command psample
@@ -431,7 +432,7 @@ tc_sample_md_out_tc_test()
 	RET=0
 
 	# Output traffic class is not supported on Spectrum-1.
-	[[ "$DEVLINK_VIDDID" == "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 2+ || return
 
 	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
 		skip_sw action sample rate 5 group 1
@@ -477,7 +478,7 @@ tc_sample_md_out_tc_occ_test()
 	RET=0
 
 	# Output traffic class occupancy is not supported on Spectrum-1.
-	[[ "$DEVLINK_VIDDID" == "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 2+ || return
 
 	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
 		skip_sw action sample rate 1024 group 1
@@ -521,7 +522,7 @@ tc_sample_md_latency_test()
 	RET=0
 
 	# Egress sampling not supported on Spectrum-1.
-	[[ "$DEVLINK_VIDDID" == "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 2+ || return
 
 	tc filter add dev $rp2 egress protocol all pref 1 handle 101 matchall \
 		skip_sw action sample rate 5 group 1
@@ -550,7 +551,7 @@ tc_sample_acl_group_conflict_test()
 	# port with different groups.
 
 	# Policy-based sampling is not supported on Spectrum-1.
-	[[ "$DEVLINK_VIDDID" == "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 2+ || return
 
 	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
 		skip_sw action sample rate 1024 group 1
@@ -579,7 +580,7 @@ __tc_sample_acl_rate_test()
 	RET=0
 
 	# Policy-based sampling is not supported on Spectrum-1.
-	[[ "$DEVLINK_VIDDID" == "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 2+ || return
 
 	tc filter add dev $port $bind protocol ip pref 1 handle 101 flower \
 		skip_sw dst_ip 198.51.100.1 action sample rate 32 group 1
@@ -631,7 +632,7 @@ tc_sample_acl_max_rate_test()
 	RET=0
 
 	# Policy-based sampling is not supported on Spectrum-1.
-	[[ "$DEVLINK_VIDDID" == "15b3:cb84" ]] && return
+	mlxsw_only_on_spectrum 2+ || return
 
 	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
 		skip_sw action sample rate $((2 ** 24 - 1)) group 1

tools/testing/selftests/net/forwarding/devlink_lib.sh

@@ -563,12 +563,6 @@ devlink_trap_group_policer_get()
 		| jq '.[][][]["policer"]'
 }
 
-devlink_trap_policer_ids_get()
-{
-	devlink -j -p trap policer show \
-		| jq '.[]["'$DEVLINK_DEV'"][]["policer"]'
-}
-
 devlink_port_by_netdev()
 {
 	local if_name=$1

tools/testing/selftests/net/forwarding/lib.sh

@@ -286,6 +286,15 @@ log_test()
 	return 0
 }
 
+log_test_skip()
+{
+	local test_name=$1
+	local opt_str=$2
+
+	printf "TEST: %-60s  [SKIP]\n" "$test_name $opt_str"
+	return 0
+}
+
 log_info()
 {
 	local msg=$1