Should we try to deprecate it to ease some of Damjans guilt? :)

Chris

From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] On 
Behalf Of Billy McFall
Sent: Thursday, April 20, 2017 16:29
To: Damjan Marion (damarion) <damar...@cisco.com>
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] Connectivity issue when using vhost-user on 17.04?

The vHost examples on the Wiki used the feature-mask of 0xFF. I think that is 
how it got propagated. In 16.09 when I did the CLI documentation for the vHost, 
I expanded what the bits meant and used feature-mask 0x40400000 as the example. 
I will gladly add an additional comment indicating that the recommended use is 
to leave blank if this was intended to be debug.

https://docs.fd.io/vpp/17.07/clicmd_src_vnet_devices_virtio.html

Billy

On Thu, Apr 20, 2017 at 4:17 PM, Damjan Marion (damarion) 
<damar...@cisco.com<mailto:damar...@cisco.com>> wrote:

Eric,

long time ago ( i think 3+ years) when I wrote original vhost-user driver in 
vpp,
I added feature-mask knob to cli which messes up with feature bitmap purely for 
debugging
reasons.

And I regret many times…

Somebody dig it out and documented it somewhere, for to me unknown reasons.
Now it spreads like a virus and I cannot stop it :)

So please don’t use it, it is evil….

Thanks,

Damjan

> On 20 Apr 2017, at 20:49, Ernst, Eric 
> <eric.er...@intel.com<mailto:eric.er...@intel.com>> wrote:
>
> All,
>
> After updating the startup.conf to not reference DPDK, per direction in 
> release
> notification thread, I was able to startup vpp and create interfaces.
>
> Now that I'm testing, I noticed that I can no longer ping between VM hosts 
> which
> make use of vhost-user interfaces and are connected via l2 bridge domain
> (nor l2 xconnect).  I double checked, then reverted back to 17.01, where I 
> could
> again verify connectivity between the guests.
>
> Any else seeing this, or was there a change in how this should be set up?  For
> reference, I have my (simple) setup described @ a gist at [1].
>
> Thanks,
> eric
>
>
> [1] - https://gist.github.com/egernst/5982ae6f0590cd83330faafacc3fd545
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--
Billy McFall
SDN Group
Office of Technology
Red Hat
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