E1000_TXD_STAT_TC  655 drivers/net/ethernet/intel/e1000/e1000_hw.h #define E1000_TXD_STAT_TC    0x00000004	/* Tx Underrun */
E1000_TXD_STAT_TC  284 drivers/net/ethernet/intel/e1000e/defines.h #define E1000_TXD_STAT_TC    0x00000004 /* Tx Underrun */