tstorm_eth_mac_filter_config
struct tstorm_eth_mac_filter_config e1x;
struct tstorm_eth_mac_filter_config *mac_filters,
size_t size = sizeof(struct tstorm_eth_mac_filter_config);
struct tstorm_eth_mac_filter_config *mac_filters =
(struct tstorm_eth_mac_filter_config *)p->rdata;