Re: [PATCH v7 04/15] net/xsc: add xsc dev ops to support VFIO driver

[Bruce Richardson <bruce.richardson@intel.com>]

On Wed, Feb 05, 2025 at 03:43:30PM +0100, Thomas Monjalon wrote:
> 05/02/2025 15:37, Renyong Wan:
> > On 2025/2/5 19:44, Thomas Monjalon wrote:
> > > 28/01/2025 15:46, Renyong Wan:
> > >> XSC PMD is designed to support both VFIO and private kernel drivers.
> > > What's the benefit of private kernel drivers?  Why are they private?
> > 
> > Hello Thomas,
> > 
> > Thanks for your review.
> > 
> > It can support the bifurcation model without unbinding the kernel
> > driver, by utilizing our private kernel driver in conjunction with
> > rdma-core. Currently, our kernel driver is not open-source, so it is
> > considered a private kernel driver. This patch series only supports the
> > VFIO driver. Our kernel driver is currently in the process of being
> > open-sourced on kernel.org, and once it is available there, we also
> > plan to submit the code that supports our kernel driver to DPDK.
> 
> OK that's interesting, thank you.
> 
> I think it would be the first DPDK driver to support both VFIO or
> bifurcated model.
> 

Not quite the first, but possibly the first net driver? :-). The idxd
dmadev driver supports both. It can be used either with VFIO or the kernel
idxd driver.

/Bruce