F_FL0_ENABLE
doorbell_pio(sge, F_FL0_ENABLE | F_FL1_ENABLE);
sge->sge_control = F_CMDQ0_ENABLE | F_CMDQ1_ENABLE | F_FL0_ENABLE |
if (flagt & F_FL0_ENABLE)
if (unlikely(flags & (F_FL0_ENABLE | F_FL1_ENABLE)))