On 6/09/19 6:52 AM, Baolin Wang wrote: > Now the MMC read/write stack will always wait for previous request is > completed by mmc_blk_rw_wait(), before sending a new request to hardware, > or queue a work to complete request, that will bring context switching > overhead, especially for high I/O per second rates, to affect the IO > performance. > > Thus this patch introduces virtual command queue interface, which is > similar with the hardware command queue engine's idea, that can remove > the context switching. CQHCI is a hardware interface for eMMC's that support command queuing. What you are doing is a software issue queue, unrelated to CQHCI. I think you should avoid all reference to CQHCI i.e. call it something else.
