[dpdk-dev] [PATCH] dmadev: introduce DMA device library

[Matan Azrad]

Hi

From: fengchengwen
> On 2021/7/4 23:21, Matan Azrad wrote:
> >
> >
> > From: Chengwen Feng
> >> This patch introduces 'dmadevice' which is a generic type of DMA
> >> device.
> >>
> >> The APIs of dmadev library exposes some generic operations which can
> >> enable configuration and I/O with the DMA devices.
> >>
> > Did you consider RTE_COMP_ALGO_NULL xform in compressdev library?
> >
> 
> em, I just looked at the code.
> 
> The RTE_COMP_ALGO_NULL is a small feature of the compression device.
> and currently only mlx5 and isal support it.

Yes, but what that is mean?
If more drivers support DMA operations they can add the support there, no?


> Also the compressdev dataplane API relatively complicated to do just DMA
> copy.

You snipped more comments I wrote below 😊
Maybe it is related....

> So I think we need a separate driver framework for the DMA device.

Need to consider deprecation in compressdev if so....

> thanks
> 
> [snip]
> 
> >
> >
> > .
> >