1 SG_FLAG_DIRECT_IO 1 2 SG_FLAG_UNUSED_LUN_INHIBIT 2 3 SG_FLAG_MMAP_IO 4 4 SG_FLAG_NO_DXFER 0x10000 5 SG_FLAG_Q_AT_TAIL 0x10 6 SG_FLAG_Q_AT_HEAD 0x20 7
