<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 10pt; color: #000099'> Dear Alex / List , Thanks for the response. The problem is regarding detaching from the guest not host. In our case since ixgbevf driver is NOT present in the host hence the virtual interfaces never really attach themselves to the host. Regards, Rajesh Kumar Mallah Tel. 91-11-46710500 (Ext:303) Cell +919811255597 Website: http://www.tradeindia.com/ \|/ \|/ \|/ stop printing \|/ \|/ \|/ | | | start planting | | | ----- "Alex Jia" <ajia@redhat.com> wrote: | From: "Alex Jia" <ajia@redhat.com> | To: "Rajesh Kumar Mallah" <mallah@tradeindia.com> | Cc: libvirt-users@redhat.com | Sent: Tuesday, August 21, 2012 8:31:21 AM | Subject: Re: [libvirt-users] automatically detaching PCI host devices from guest for SRIOV usage. | | On 08/20/2012 08:34 PM, Rajesh Kumar Mallah wrote: <blockquote cite="mid:25600302.2901631345466078933.JavaMail.root@zmbox01.trade-india-local.com"> <pre>Dear List , We are using intel 82599EB based SRIOV capable 10GbE cards on the host machine.The VFs are being assigned to the guest in pass through mode and are providing the network connectivity as expected. However when we shutdown the guest the connectivity does not comes back via the VFs on the guest in next boot unless the VFs are detached from the *guest* *before* initiating a shutdown of the guests. </pre> </blockquote> Dear Rajesh, | | Please see the following comments. | | <blockquote cite="mid:25600302.2901631345466078933.JavaMail.root@zmbox01.trade-india-local.com"> <pre>( the detach is explicitly done via virsh command /usr/local/libvirt/bin/virsh detach-device guest01 ~/nic.xml nic.xml contained <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0000' bus='0x04' slot='0x10' function='0x0'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </hostdev> ) The question is anyone else facing similar problem and if so what solution was used? Secondly , is there anyway to automate the detaching of the VFs from the guest when the guest is put in the shutdown sequence ? (or for that matter destroyed). </pre> </blockquote> | When <big><big><code>managed</code></big></big> is "yes" for a PCI device, it is automatically detached from the host before being passed on to the guest, and automatically reattached to the host after the guest exits such as shutdown a guest. | | Regards, | Alex | | <blockquote cite="mid:25600302.2901631345466078933.JavaMail.root@zmbox01.trade-india-local.com"> <pre> Regards, Rajesh Kumar Mallah Tel. 91-11-46710500 (Ext:303) Cell +919811255597 Website: <a class="moz-txt-link-freetext" href="http://www.tradeindia.com/" target="_blank">http://www.tradeindia.com/</a> \|/ \|/ \|/ stop printing \|/ \|/ \|/ | | | start planting | | | _______________________________________________ libvirt-users mailing list <a class="moz-txt-link-abbreviated" href="mailto:libvirt-users@redhat.com" target="_blank">libvirt-users@redhat.com</a> <a class="moz-txt-link-freetext" href="https://www.redhat.com/mailman/listinfo/libvirt-users" target="_blank">https://www.redhat.com/mailman/listinfo/libvirt-users</a> </pre> </blockquote> | </div></body></html>