[dpdk-dev] i40e SR-IOV with Linux PF

[Chen, Jing D]

> 
> +Cc dev at dpdk.org
> 
> 2017-03-13 15:29, Thomas Monjalon:
> > Hi i40e developers,
> >
> > Referring to the VFD discussion, I thought basic behaviours were the
> > same regardless of the PF driver:
> > http://dpdk.org/ml/archives/dev/2016-December/053056.html
> > "
> > > In the meanwhile, we have some test models ongoing to validate
> > > combination of Linux and DPDK drivers for VF and PF.
> > > We'll fully support below 4 cases going forward.
> > > 1. DPDK PF + DPDK VF
> > > 2. DPDK PF + Linux VF
> > > 3. Linux PF + DPDK VF
> > > 4. Linux PF + Linux VF (it's not our scope)
> > [...]
> > > Linux PF + DPDK VF has been tested with 1.0 API long time ago.
> > > There is some test activities ongoing.
> > "
> >
> > I think the Linux PF case is important and deserves more consideration.
> > When looking at the code, specifically i40evf_vlan_offload_set() and
> > i40evf_vlan_pvid_set(), I read this:
> > "
> >     /* Linux pf host doesn't support vlan offload yet */
> >     if (vf->version_major == I40E_DPDK_VERSION_MAJOR) { "
> >
> > Is there some work in progress on Linux side to get the same behaviour
> > as with a DPDK PF?
> >
> > At least, it must be documented in
> > 	doc/guides/nics/features/i40e_vf.ini
> > and marked as partially supported (P instead of Y) in
> > 	doc/guides/nics/i40e.rst

Thanks for pointing it out. We'll sync our code with latest kernel driver and
document and comment properly soon.