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<p class="MsoNormal">Hi Julia, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I don't mind to update the ironic spec [1]. Unfortunately, I wasn't in the PTG but I had a sync meeting with Isuku.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As I see it there is 2 use-cases:<o:p></o:p></p>
<ol style="margin-top:0cm" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:18.0pt;mso-list:l1 level1 lfo1">Running the neutron ovs agent in the smartnic<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:18.0pt;mso-list:l1 level1 lfo1">Running the neutron super ovs agent which manage the ovs running on the smartnic.<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It seem that most of the discussion was around the second use-case.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is my understanding on the ironic neutron PTG meeting:<o:p></o:p></p>
<ol style="margin-top:0cm" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo2">Ironic cores don't want to change the deployment interface as proposed in [1].<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo2">We should  a new network_interface for use case 2. But what about the first use case? Should it be a new network_interface as well?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo2">We should delay the port binding until the baremetal is powered on the ovs is running.<o:p></o:p>
<ol style="margin-top:0cm" start="1" type="a">
<li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level2 lfo2">For the first use case I was thinking to change the neutron server to just keep the port binding information in the neutron DB. Then when the neutron ovs agent is a live it will retrieve
 all the baremeal port , add them to the ovsdb and start the neutron ovs agent fullsync.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level2 lfo2">For the second use case the agent is alive so the agent itself can monitor the ovsdb of the baremetal and configure it when it up<o:p></o:p></li></ol>
</li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo2">How to notify that neutron agent successfully/unsuccessfully bind the port ?<o:p></o:p>
<ol style="margin-top:0cm" start="1" type="a">
<li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level2 lfo2">In both use-cases we should use neutron-ironic notification to make sure the port binding was done successfully.<o:p></o:p></li></ol>
</li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is my understanding correct?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[1] - <a href="https://review.openstack.org/#/c/582767/">https://review.openstack.org/#/c/582767/</a>
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Miguel Lavalle <miguel@mlavalle.com> <br>
<b>Sent:</b> Sunday, September 30, 2018 3:20 AM<br>
<b>To:</b> OpenStack Development Mailing List <openstack-dev@lists.openstack.org><br>
<b>Subject:</b> Re: [openstack-dev] [ironic][neutron] SmartNics with Ironic<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Yes, this also matches the recollection of the joint conversation in Denver. Please look at the "Ironic x-project discussion - Smartnics" section in
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http://lists.openstack.org/pipermail/openstack-dev/2018-September/135032.html</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Miguel<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Thu, Sep 27, 2018 at 1:31 PM Julia Kreger <<a href="mailto:juliaashleykreger@gmail.com">juliaashleykreger@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Greetings everyone,<br>
<br>
Now that the PTG is over, I would like to go ahead and get the<br>
specification that was proposed to ironic-specs updated to represent<br>
the discussions that took place at the PTG.<br>
<br>
A few highlights from my recollection:<br>
<br>
* Ironic being the source of truth for the hardware configuration for<br>
the neutron agent to determine where to push configuration to. This<br>
would include the address and credential information (certificates<br>
right?).<br>
* The information required is somehow sent to neutron (possibly as<br>
part of the binding profile, which we could send at each time port<br>
actions are requested by Ironic.)<br>
* The Neutron agent running on the control plane connects outbound to<br>
the smartnic, using information supplied to perform the appropriate<br>
network configuration.<br>
* In Ironic, this would likely be a new network_interface driver<br>
module, with some additional methods that help facilitate the<br>
work-flow logic changes needed in each deploy_interface driver module.<br>
* Ironic would then be informed or gain awareness that the<br>
configuration has been completed and that the deployment can proceed.<br>
(A different spec has been proposed regarding this.)<br>
<br>
I have submitted a forum session based upon this and the agreed upon<br>
goal at the PTG was to have the ironic spec written up to describe the<br>
required changes.<br>
<br>
I guess the next question is, who wants to update the specification?<br>
<br>
-Julia<br>
<br>
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