[dpdk-dev] [PATCH] gpudev: introduce memory API

[Thomas Monjalon]

03/06/2021 11:33, Ferruh Yigit:
> On 6/3/2021 8:47 AM, Jerin Jacob wrote:
> > On Thu, Jun 3, 2021 at 2:05 AM Thomas Monjalon <thomas at monjalon.net> wrote:
> >> +  [gpudev]             (@ref rte_gpudev.h),
> > 
> > Since this device does not have a queue etc? Shouldn't make it a
> > library like mempool with vendor-defined ops?
> 
> +1
> 
> Current RFC announces additional memory allocation capabilities, which can suits
> better as extension to existing memory related library instead of a new device
> abstraction library.

It is not replacing mempool.
It is more at the same level as EAL memory management:
allocate simple buffer, but with the exception it is done
on a specific device, so it requires a device ID.

The other reason it needs to be a full library is that
it will start a workload on the GPU and get completion notification
so we can integrate the GPU workload in a packet processing pipeline.