MBOX_MQ_CI_OFFSET
val = hinic3_hwif_read_reg(mbox->hwdev->hwif, MBOX_MQ_CI_OFFSET);
hinic3_hwif_write_reg(mbox->hwdev->hwif, MBOX_MQ_CI_OFFSET, val);
val = hinic3_hwif_read_reg(mbox->hwdev->hwif, MBOX_MQ_CI_OFFSET);