E1000_ICR_VMMB 431 drivers/net/ethernet/intel/igb/e1000_defines.h #define E1000_IMS_VMMB E1000_ICR_VMMB /* Mail box activity */ E1000_ICR_VMMB 6542 drivers/net/ethernet/intel/igb/igb_main.c if (icr & E1000_ICR_VMMB)