Re: [PATCH 0/6] Xen DOM0 runtime support

[Stephen Hemminger <stephen@networkplumber.org>]

On Wed, 21 Oct 2015 16:40:08 +0200
Thomas Monjalon <thomas.monjalon@6wind.com> wrote:

> 2015-09-30 10:30, Stephen Hemminger:
> > On Wed, 30 Sep 2015 10:14:09 +0200
> > David Marchand <david.marchand@6wind.com> wrote:
> > > On Tue, Sep 29, 2015 at 2:44 AM, Stephen Hemminger <
> > > stephen@networkplumber.org> wrote:
> > > > It should be possible to build a single application or library
> > > > that will work both in Xen and non-Xen environment. Any special
> > > > case handling should be done at runtime.
> > > 
> > > This patchset looks good, but can you go a step further and completely
> > > remove the RTE_LIBRTE_XEN_DOM0 build option ?
> > > This requires some more work (igb_uio, app/test), but I think this is worth
> > > it all the more so as you are looking into it at the moment.
> > 
> > I was thinking that for people on embedded systems having
> > the build option (which stubs out support) was a good thing.
> 
> No we must remove the config options.
> It is not in a hot path so there is no reason to disable this support.
> Please respin.

I looked into this, But Xen dom0 is a driver as well, and DPDK as is
makes all the drivers optional.  Also, we don't use Xen dom0 directly
(only the net-front driver), and therefore do not have the infrastructure
to test that driver.