nvme_tag_from_cid
u32 tag = nvme_tag_from_cid(cmd->common.command_id);
u16 tag = nvme_tag_from_cid(command_id);
return blk_mq_tag_to_rq(tags, nvme_tag_from_cid(command_id));
nvme_tag_from_cid(command_id) >= NVME_AQ_BLK_MQ_DEPTH;