int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
extern unsigned int efx_piobuf_size;
int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
extern unsigned int efx_piobuf_size;