Re: [EXTERNAL] Re: [RFC PATCH 12/12] HV/Storvsc: Add bounce buffer support for Storvsc

2021-03-02 Thread Tianyu Lan
Hi Sunil: Thanks for your review. On 3/2/2021 3:45 AM, Sunil Muthuswamy wrote: Hi Christoph: Thanks a lot for your review. There are some reasons. 1) Vmbus drivers don't use DMA API now. What is blocking us from making the Hyper-V drivers use the DMA API's? They will be a

RE: [EXTERNAL] Re: [RFC PATCH 12/12] HV/Storvsc: Add bounce buffer support for Storvsc

2021-03-01 Thread Sunil Muthuswamy
> Hi Christoph: > Thanks a lot for your review. There are some reasons. > 1) Vmbus drivers don't use DMA API now. What is blocking us from making the Hyper-V drivers use the DMA API's? They will be a null-op generally, when there is no bounce buffer support needed. > 2) Hyper-V