I40E_TXD_QW1_CMD_SHIFT
cpu_to_le64(I40E_TXD_CMD << I40E_TXD_QW1_CMD_SHIFT);
((u64)td_cmd << I40E_TXD_QW1_CMD_SHIFT) |
tx_desc->cmd_type_offset_bsz |= cpu_to_le64(I40E_TX_DESC_CMD_RS << I40E_TXD_QW1_CMD_SHIFT);