int (*vswitching_probe)(struct efx_nic *efx);
int (*vswitching_restore)(struct efx_nic *efx);
void (*vswitching_remove)(struct efx_nic *efx);
+ int (*get_mac_address)(struct efx_nic *efx, unsigned char *perm_addr);
int revision;
unsigned int txd_ptr_tbl_base;