IPI_TX_INTR
txd_flags = pi->ipi_flags & IPI_TX_INTR ? IGC_ADVTXD_DCMD_RS : 0;
txd_flags = pi->ipi_flags & IPI_TX_INTR ? E1000_TXD_CMD_RS : 0;
txd_flags = pi->ipi_flags & IPI_TX_INTR ? E1000_ADVTXD_DCMD_RS : 0;
txd->compreq = !!(pi->ipi_flags & IPI_TX_INTR);
IPI_TX_INTR : 0;
pi.ipi_flags |= IPI_TX_INTR;