On Sat, Nov 17, 2018 at 1:17 PM Radoslaw Biernacki <radoslaw.biernacki@linaro.org> wrote:
ThunderX is Cavium SoC. This platform contain SRIOV NIC. Unlike other commonly known network devices it does not have VF functionality duplicated in its PF. PF is purely management device (on HW level).
This creates several problems with existing libvirt code as in many places libvirt assumes that each VF netdev has PF netdev assigned.
This patch series trying to address issues which can be easily fixed. (mostly bug fixes found while working on full featured solution)
First patch in series is most important as it allows to unblock the netdev detection and use <hostdev> on this platform.i <interface type="hostdev" still does not work as it requires bigger changes both on netdev driver and in libvirt itself. More details about those issues can be found at: https://bugs.linaro.org/show_bug.cgi?id=3778 https://bugs.launchpad.net/charm-nova-compute/+bug/1771662
v2: - error reporting taken out of virNetDevGetPhysicalFunction() and moved to calling function virNetDevGetVirtualFunctionInfo() - curly braces removed from single line - net-> model check removed as STREQ_NULLABLE() follows
Thanks Radoslaw ! I know a v3 is in the works, but just an fyi that we ran this series through our OpenStack testing on a cluster of ThunderX nodes and found no issues. -dann