int prefix_set_mac_addr(gld_mac_info_t *macinfo, unsigned char *macaddr);
gldm_set_mac_addr() sets the physical address that the hardware is to use for receiving data. This function enables the device to be programmed through the passed MAC address macaddr. If sufficient resources are currently not available to carry out the request, gldm_set_mac_add() should return GLD_NORESOURCES. If the requested function is not supported, gldm_set_mac_add() should return GLD_NOTSUPPORTED.