The xemac_add() function provides a
unified interface to add any Xilinx EMAC IP as well as GigE core. This function is a
wrapper around the lwIP netif_add function that initializes the network interface
‘netif’ given its IP address ipaddr, netmask, the IP address of the gateway, gw, the 6
byte ethernet address mac_ethernet_address, and the base address, mac_baseaddr, of the
axi_ethernetlite or axi_ethernet MAC core.
Prototype
struct netif * xemac_add(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw, unsigned char *mac_ethernet_address, unsigned mac_baseaddr);