1 files changed, 42 insertions, 4 deletions

diff --git a/common/VIL/gateway/gateway.h b/common/VIL/gateway/gateway.h
index 47a3b8a7..2da8ff64 100644
--- a/common/VIL/gateway/gateway.h
+++ b/common/VIL/gateway/gateway.h
@@ -68,17 +68,17 @@ struct route_table_entry {
 struct route_data {
 	struct route_table_entry route_table[MAX_ROUTE_ENTRY_SIZE];
 	uint8_t route_ent_cnt;
-};
+}__rte_cache_aligned;
 
 /**
  * A structure for Route table entires of IPv6
  *
  */
 struct nd_route_table_entry {
+	uint32_t port;		/**< Port */
 	uint8_t nhipv6[16];	/**< next hop Ipv6 */
 	uint8_t depth;		/**< Depth */
-	uint32_t port;		/**< Port */
-};
+}__rte_cache_aligned;
 
 /**
  * Routing table for IPv6
@@ -87,7 +87,7 @@ struct nd_route_table_entry {
 struct nd_route_data {
 	struct nd_route_table_entry nd_route_table[MAX_ND_ROUTE_ENTRY_SIZE];
 	uint8_t nd_route_ent_cnt;
-};
+}__rte_cache_aligned;
 
 extern void gw_init(uint32_t num_ports);
 
@@ -95,6 +95,44 @@ extern uint32_t gw_get_num_ports(void);
 
 extern uint32_t is_gateway(void);
 
+/**
+ * Get the route next hop ip address and port number for IPv4
+ * @param dst_ip_addr
+ *  Destination IPv4 address
+ * @param dst_port
+ *  A pointer to destination port
+ * @param nhip
+ *  A pointer to next hop ip address
+ */
+
+static inline int gw_get_route_nh_port_ipv4(uint32_t dst_ip_addr,
+			 uint32_t *dst_port, uint32_t *nhip, uint32_t nport)
+{
+	int i = 0;
+	uint32_t j = nport;
+
+	while(likely(i < p_route_data[j]->route_ent_cnt)) {
+	     if (likely((p_route_data[j]->route_table[i].nh_mask) ==
+			(dst_ip_addr &
+			 p_route_data[j]->route_table[i].mask))) {
+
+	          *dst_port = p_route_data[j]->route_table[i].port;
+		  *nhip =  p_route_data[j]->route_table[i].nh;
+
+#ifdef ARPICMP_DEBUG
+		  lib_arp_nh_found++;
+#endif
+		  return 1;
+	     }
+             i++;
+	}
+
+       *nhip = 0;
+       *dst_port = 0xff;
+       return 0;
+}
+
+
 extern void gw_get_nh_port_ipv4(uint32_t dst_ip_addr,
 					uint32_t *dst_port, uint32_t *nhip);