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<p class="MsoNormal">Hello Chenjie,<o:p></o:p></p>
<p class="MsoNormal">We typically configure the PCI-PT devices using the vnic-type option for manually created ports. This replaces the older mechanism of being able to specify the vif-type (which was a StarlingX specific extension that was dropped).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For your question about the NIC type that does not support SR-IOV, do you mean a port that does not report itself as a PF (from a libvirt/nova perspective that would be device with Type-PCI vs Type-PF)?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Matt<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">"Xu, Chenjie" <chenjie.xu@intel.com><br>
<b>Date: </b>Tuesday, August 6, 2019 at 11:14 AM<br>
<b>To: </b>"Peters, Matt" <Matt.Peters@windriver.com>, "Webster, Steven" <Steven.Webster@windriver.com>, "Kopec, Gerald (Gerry)" <Gerry.Kopec@windriver.com><br>
<b>Cc: </b>Ghada Khalil <Ghada.Khalil@windriver.com>, "Zhao, Forrest" <forrest.zhao@intel.com>, "starlingx-discuss@lists.starlingx.io" <starlingx-discuss@lists.starlingx.io><br>
<b>Subject: </b>RE: [Starlingx-discuss] [Bug] flavor "pci_passthrough:alias" should be required to passthrough physical NICs<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">Hi Matt,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">I find another way to pass through SR-IOV capable physical NIC to VM. This new way doesn't require to configure "PCI alias". The key point is to create a port whose vnic_type is
direct-physical. The following link can be referenced:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D"><a href="https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/10/html/networking_guide/sr-iov-support-for-virtual-networking">https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/10/html/networking_guide/sr-iov-support-for-virtual-networking</a></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">However if we try to pass through a physical NIC which doesn't support SR-IOV, we may still need to configure "PCI alias". Because I don't have a physical NIC which doesn't support
SR-IOV on my server, I can't test passing such NIC to VM by creating port whose vnic_type is direct-physical.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">Do you think StarlingX needs to configure “PCI alias” automatically for physical NIC which doesn’t support SR-IOV or not?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">Best Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D">Xu, Chenjie</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><a name="_____replyseparator"></a><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Peters, Matt [mailto:Matt.Peters@windriver.com]
<br>
<b>Sent:</b> Thursday, August 1, 2019 6:34 PM<br>
<b>To:</b> Xu, Chenjie <chenjie.xu@intel.com>; Webster, Steven <Steven.Webster@windriver.com>; Kopec, Gerald (Gerry) <Gerry.Kopec@windriver.com><br>
<b>Cc:</b> Khalil, Ghada <Ghada.Khalil@windriver.com>; Zhao, Forrest <forrest.zhao@intel.com>; starlingx-discuss@lists.starlingx.io<br>
<b>Subject:</b> Re: [Starlingx-discuss] [Bug] flavor "pci_passthrough:alias" should be required to passthrough physical NICs</span><o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal">+Steve +Gerry<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Do you have any additional information to add here? I don’t believe we had to setup an alias in the past to do PCI-PT, so is this something that is new to the latest OpenStack nova release? Did we drop some functionality to align with
upstream nova (that use to be in starlingx-staging)?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">-Matt<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">"Xu, Chenjie" <<a href="mailto:chenjie.xu@intel.com">chenjie.xu@intel.com</a>><br>
<b>Date: </b>Thursday, August 1, 2019 at 3:36 AM<br>
<b>To: </b>"Peters, Matt" <<a href="mailto:Matt.Peters@windriver.com">Matt.Peters@windriver.com</a>><br>
<b>Cc: </b>Ghada Khalil <<a href="mailto:Ghada.Khalil@windriver.com">Ghada.Khalil@windriver.com</a>>, "Zhao, Forrest" <<a href="mailto:forrest.zhao@intel.com">forrest.zhao@intel.com</a>>, "<a href="mailto:starlingx-discuss@lists.starlingx.io">starlingx-discuss@lists.starlingx.io</a>"
<<a href="mailto:starlingx-discuss@lists.starlingx.io">starlingx-discuss@lists.starlingx.io</a>><br>
<b>Subject: </b>[Starlingx-discuss] [Bug] flavor "pci_passthrough:alias" should be required to passthrough physical NICs</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt">Hi Matt,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt">Based on my testing, the flavor with property “pci_passthrough:alias” should be required for passing a physical NIC to the VM. But it should not be required for passing a VF to the VM. So I think
the alias information should contain physical NICs which are configured with “pci-passthrough” by following command:</span><o:p></o:p></p>
<p class="MsoNormal" style="text-indent:15.75pt"><span lang="EN-US" style="font-size:10.5pt">system host-if-modify -m 1500 -n pcipass -c pci-passthrough ${COMPUTE} ${IFUUID}</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt"> system interface-datanetwork-assign ${COMPUTE} pcipass ${PHYSNET2}</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt">Could you please let me know your opinions and leave a comment in the below bug:</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://bugs.launchpad.net/starlingx/+bug/1836682">https://bugs.launchpad.net/starlingx/+bug/1836682</a></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt">Best Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt">Xu, Chenjie</span><o:p></o:p></p>
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