cpu_to_bus((u32 *)hd, sizeof(struct qm_host_desc)/4);
regd = (u32)hd | ((sizeof(struct qm_host_desc) >> 4) - 1);
writel(regd, &qm_cfg->queue[qnum].ptr_size_thresh);
cpu_to_bus((u32 *)hd, sizeof(struct qm_host_desc)/4);
regd = (u32)hd | ((sizeof(struct qm_host_desc) >> 4) - 1);
writel(regd, &qm_cfg->queue[qnum].ptr_size_thresh);