int mlx5_get_master_ifname(const struct rte_eth_dev *dev,
char (*ifname)[IF_NAMESIZE]);
int mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE]);
-int mlx5_ifindex(const struct rte_eth_dev *dev);
+unsigned int mlx5_ifindex(const struct rte_eth_dev *dev);
int mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr,
int master);
int mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu);