On Wed, 27 Nov 2013 10:09:09 +0530 Prashant Upadhyaya <prashant.upadhyaya at aricent.com> wrote:
> Hi, > > Let me be more specific. > Does DPDK support hot plugin/plugout of PCI devices ? > What typically needs to be done if this is to be achieved inside an > application. > > Typically, the NIC PF or VF appears to the DPDK application as a PCI device > which is probed at startup. > Now what happens if I insert a new VF dynamically and want to use it inside > the DPDK application (while it is already running), how should this typically > be done ? [hotplugin] > And what happens if the DPDK application is in control of a PCI device and > that PCI device is suddenly removed ? How can the application detect this and > stop doing data transfer on this and sort of unload it ? [hotplugout] > > If the above can be coded inside the DPDK app, then we can think of live VM > migration with SRIOV -- just hotplugin and plugout the VF's. > > Regards > -Prashant > The current implementation does look like it supports hotplug. All devices are discovered during rte_eal_pci_probe.
