selftests: mlxsw: Add a test case for MAC profiles consolidation

Add a test case to cover the bug fixed by the previous patch.

Edit the MAC address of one netdev so that it matches the MAC address of
the second netdev. Verify that the two MAC profiles were consolidated by
testing that the MAC profiles occupancy decreased by one.

Signed-off-by: Danielle Ratson <[e-mail]>
Signed-off-by: Ido Schimmel <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

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

···
 	ip link set $h1.10 address $h1_10_mac
 }
 
+rif_mac_profile_consolidation_test()
+{
+	local count=$1; shift
+	local h1_20_mac
+
+	RET=0
+
+	if [[ $count -eq 1 ]]; then
+		return
+	fi
+
+	h1_20_mac=$(mac_get $h1.20)
+
+	# Set the MAC of $h1.20 to that of $h1.10 and confirm that they are
+	# using the same MAC profile.
+	ip link set $h1.20 address 00:11:11:11:11:11
+	check_err $?
+
+	occ=$(devlink -j resource show $DEVLINK_DEV \
+	      | jq '.[][][] | select(.name=="rif_mac_profiles") |.["occ"]')
+
+	[[ $occ -eq $((count - 1)) ]]
+	check_err $? "MAC profile occupancy did not decrease"
+
+	log_test "RIF MAC profile consolidation"
+
+	ip link set $h1.20 address $h1_20_mac
+}
+
 rif_mac_profile_shared_replacement_test()
 {
 	local count=$1; shift
···
 	create_max_rif_mac_profiles $count
 
 	rif_mac_profile_replacement_test
+	rif_mac_profile_consolidation_test $count
 	rif_mac_profile_shared_replacement_test $count
 }