Hi Bernard, Thank you for your answer. However, to do this, I have to have some communication protocol to the VM's application in order for it to do this sequence and acknowledge that it is now safe to proceed with detaching the device. This implies some kind of integration from the host side, which I would like to avoid. Do you think might there be any other way for the application to handle such event in a smooth way?
Thanks, Eli > -----Original Message----- > From: Iremonger, Bernard [mailto:bernard.iremonger at intel.com] > Sent: Sunday, 17 July, 2016 11:53 PM > To: Eli Britstein; dev at dpdk.org > Cc: Iremonger, Bernard > Subject: RE: SRIOV hot unplug > > Hi Eli, > > The DPDK application in the VM should remove the slave device from the > bond device, stop, close and detach the device in the VM before doing "virsh > detach-device" from the host. > > Regards, > > Bernard. > > > > -----Original Message----- > > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Eli Britstein > > Sent: Sunday, July 17, 2016 9:58 AM > > To: dev at dpdk.org > > Subject: [dpdk-dev] SRIOV hot unplug > > > > Hello, > > > > A DPDK application with a DPDK bond device, with 2 slaves: one vnic, > > and another is a SRIOV VF connected as a pathrough. > > The bond device is configured as ACTIVE/BACKUP, and the primary is the > > VF slave. > > Now, I do "virsh detach-device" from the host, and the DPDK process in > > the VM gets segmentation fault, as it tries to poll an address that is > > not mmaped anymore. > > I wonder if this flow is supposed to be supported by DPDK, or not. > > Please advise. > > > > Thanks, > > Eli > > ---------------------------------------------------------------------- > > ------------------------ > > --------------------------------------------------- > > This email and any files transmitted and/or attachments with it are > > confidential and proprietary information of Toga Networks Ltd., and > > intended solely for the use of the individual or entity to whom they > > are addressed. > > If you have received this email in error please notify the system manager. > > This message contains confidential information of Toga Networks Ltd., > > and is intended only for the individual named. If you are not the > > named addressee you should not disseminate, distribute or copy this > > e-mail. Please notify the sender immediately by e-mail if you have > > received this e-mail by mistake and delete this e-mail from your > > system. If you are not the intended recipient you are notified that > > disclosing, copying, distributing or taking any action in reliance on the > contents of this information is strictly prohibited. > > ---------------------------------------------------------------------- > > ------------------------ > > -------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------------------------------- This email and any files transmitted and/or attachments with it are confidential and proprietary information of Toga Networks Ltd., and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information of Toga Networks Ltd., and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. ------------------------------------------------------------------------------------------------------------------------------------------------
