[dpdk-dev] [PATCH v3 3/4] net/ice: support switch flow for specific L4 type

[Wei Zhao]

This patch add more specific tunnel type for ipv4/ipv6 packet,
it enable tcp/udp layer of ipv4/ipv6 as L4 payload but without
L4 dst/src port number as input set for the switch filter rule.

Fixes: 47d460d63233 ("net/ice: rework switch filter")
Cc: stable at dpdk.org

Signed-off-by: Wei Zhao <wei.zhao1 at intel.com>
---
 drivers/net/ice/ice_switch_filter.c | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ice/ice_switch_filter.c b/drivers/net/ice/ice_switch_filter.c
index c607e8d17..c1ea74c73 100644
--- a/drivers/net/ice/ice_switch_filter.c
+++ b/drivers/net/ice/ice_switch_filter.c
@@ -29,6 +29,8 @@
 #define ICE_PPP_IPV4_PROTO	0x0021
 #define ICE_PPP_IPV6_PROTO	0x0057
 #define ICE_IPV4_PROTO_NVGRE	0x002F
+#define ICE_TUN_VXLAN_VALID	0x0001
+#define ICE_TUN_NVGRE_VALID	0x0002
 
 #define ICE_SW_INSET_ETHER ( \
 	ICE_INSET_DMAC | ICE_INSET_SMAC | ICE_INSET_ETHERTYPE)
@@ -471,11 +473,11 @@ ice_switch_inset_get(const struct rte_flow_item pattern[],
 	const struct rte_flow_item_l2tpv3oip *l2tp_spec, *l2tp_mask;
 	const struct rte_flow_item_pfcp *pfcp_spec, *pfcp_mask;
 	uint64_t input_set = ICE_INSET_NONE;
+	uint16_t tunnel_valid = 0;
 	bool pppoe_elem_valid = 0;
 	bool pppoe_patt_valid = 0;
 	bool pppoe_prot_valid = 0;
 	bool profile_rule = 0;
-	bool tunnel_valid = 0;
 	bool ipv6_valiad = 0;
 	bool ipv4_valiad = 0;
 	bool udp_valiad = 0;
@@ -924,7 +926,7 @@ ice_switch_inset_get(const struct rte_flow_item pattern[],
 				return 0;
 			}
 
-			tunnel_valid = 1;
+			tunnel_valid = ICE_TUN_VXLAN_VALID;
 			if (vxlan_spec && vxlan_mask) {
 				list[t].type = ICE_VXLAN;
 				if (vxlan_mask->vni[0] ||
@@ -960,7 +962,7 @@ ice_switch_inset_get(const struct rte_flow_item pattern[],
 					   "Invalid NVGRE item");
 				return 0;
 			}
-			tunnel_valid = 1;
+			tunnel_valid = ICE_TUN_NVGRE_VALID;
 			if (nvgre_spec && nvgre_mask) {
 				list[t].type = ICE_NVGRE;
 				if (nvgre_mask->tni[0] ||
@@ -1325,6 +1327,21 @@ ice_switch_inset_get(const struct rte_flow_item pattern[],
 			*tun_type = ICE_SW_TUN_PPPOE;
 	}
 
+	if (*tun_type == ICE_NON_TUN) {
+		if (tunnel_valid == ICE_TUN_VXLAN_VALID)
+			*tun_type = ICE_SW_TUN_VXLAN;
+		else if (tunnel_valid == ICE_TUN_NVGRE_VALID)
+			*tun_type = ICE_SW_TUN_NVGRE;
+		else if (ipv4_valiad && tcp_valiad)
+			*tun_type = ICE_SW_IPV4_TCP;
+		else if (ipv4_valiad && udp_valiad)
+			*tun_type = ICE_SW_IPV4_UDP;
+		else if (ipv6_valiad && tcp_valiad)
+			*tun_type = ICE_SW_IPV6_TCP;
+		else if (ipv6_valiad && udp_valiad)
+			*tun_type = ICE_SW_IPV6_UDP;
+	}
+
 	*lkups_num = t;
 
 	return input_set;
@@ -1536,10 +1553,6 @@ ice_switch_parse_pattern_action(struct ice_adapter *ad,
 
 	for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
 		item_num++;
-		if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
-			tun_type = ICE_SW_TUN_VXLAN;
-		if (item->type == RTE_FLOW_ITEM_TYPE_NVGRE)
-			tun_type = ICE_SW_TUN_NVGRE;
 		if (item->type == RTE_FLOW_ITEM_TYPE_ETH) {
 			const struct rte_flow_item_eth *eth_mask;
 			if (item->mask)
-- 
2.19.1