On 09/20/2013 02:28 AM, Dax Kelson wrote: > I have an Intel X540 SR-IOV NIC in a box with ACS support running RHEL6.4. > > Hi Hongming, I'm hoping you can please help with two issues: > > 1. The pool works, but I transparent VLAN with the pool does not. I > have to manually run "ip" afterwards to get it to work. > > # virsh net-dumpxml em2net > <network connections='1'> > <name>em2net</name> > <uuid>d5dabeb2-fa09-3edf-660a-db42d8cd3f4d</uuid> > <forward mode='hostdev' managed='yes'> > <pf dev='em2'/> > <snip giant list of VFs> > </forward> > </network> > > # virsh dumpxml guestbox > --- > <interface type='network'> > <mac address='52:54:00:c0:de:00'/> > <source network='em2net'/> > <vlan> > <tag id='17'/> > </vlan> > <alias name='hostdev0'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x07' > function='0x0'/> > </interface> > --- > > The networking doesn't work until I run the following command on the host: > > ip link set em2 vf 0 vlan 17 > > Then networking in the guest starts working and the following shows up > in dmesg on the host: > > ixgbe 0000:01:00.1: Setting VLAN 17, QOS 0x0 on VF 0 This is a known bug in RHEL6.4, which will be fixed in RHEL6.5: https://bugzilla.redhat.com/show_bug.cgi?id=999107 In the meantime, you should be able to work around the bug by adding the same <vlan> element to each guest's <interface> (if that also doesn't work, then you are also suffering from a bug caused by a change to the kernel NETLINK ABI - in that case you should update kernel, libnl, and libvirt packages (at least) to the latest 6.4 versions available.) If the workaround isn't adequate for you, you should open a ticket with Red Hat support to get the fix for that bug backported to RHEL6.4 libvirt. > > 2. I can only do a single SR-IOV NIC per guest. If I try to add > another NIC (or even PCI passthrough), I get "Duplicate ID 'hostdev0' > for device" This is also a known bug in RHEL6.4: https://bugzilla.redhat.com/show_bug.cgi?id=1001881 Again, if it is causing you problems please open a ticket with Red Hat support so that the bug can be reprioritized. _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
