net: lan966x: Add support for IS1 VCAP ethernet protocol types

IS1 VCAP has it's own list of supported ethernet protocol types which is
different than the IS2 VCAP. Therefore separate the list of known
protocol types based on the VCAP type.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: HoratiuVultur

drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c

@@ -5,14 +5,34 @@
 #include "vcap_api_client.h"
 #include "vcap_tc.h"
 
-static bool lan966x_tc_is_known_etype(u16 etype)
+static bool lan966x_tc_is_known_etype(struct vcap_tc_flower_parse_usage *st,
+				      u16 etype)
 {
-	switch (etype) {
-	case ETH_P_ALL:
-	case ETH_P_ARP:
-	case ETH_P_IP:
-	case ETH_P_IPV6:
-		return true;
+	switch (st->admin->vtype) {
+	case VCAP_TYPE_IS1:
+		switch (etype) {
+		case ETH_P_ALL:
+		case ETH_P_ARP:
+		case ETH_P_IP:
+		case ETH_P_IPV6:
+			return true;
+		}
+		break;
+	case VCAP_TYPE_IS2:
+		switch (etype) {
+		case ETH_P_ALL:
+		case ETH_P_ARP:
+		case ETH_P_IP:
+		case ETH_P_IPV6:
+		case ETH_P_SNAP:
+		case ETH_P_802_2:
+			return true;
+		}
+		break;
+	default:
+		NL_SET_ERR_MSG_MOD(st->fco->common.extack,
+				   "VCAP type not supported");
+		return false;
 	}
 
 	return false;
@@ -69,7 +89,7 @@ lan966x_tc_flower_handler_basic_usage(struct vcap_tc_flower_parse_usage *st)
 	flow_rule_match_basic(st->frule, &match);
 	if (match.mask->n_proto) {
 		st->l3_proto = be16_to_cpu(match.key->n_proto);
-		if (!lan966x_tc_is_known_etype(st->l3_proto)) {
+		if (!lan966x_tc_is_known_etype(st, st->l3_proto)) {
 			err = vcap_rule_add_key_u32(st->vrule, VCAP_KF_ETYPE,
 						    st->l3_proto, ~0);
 			if (err)