Re: <interface type='hostdev'>vf configuration cleanup when VM is delete

Laine Stump <laine@xxxxxxxxx> · Wed, 6 Jan 2016 14:26:12 -0500



    On 12/16/2015 01:17 PM, Laine Stump
      wrote:

    
    On
      12/16/2015 12:35 PM, Vlad Yasevich wrote:
      

        (BTW, Cisco's enic driver, on the other
          hand, doesn't support setting VF MAC addresses via
          

          a netlink message to the PF *at all* (so libvirt has to make
          special accommodations), but
          

        Looking at upstream, it looks like it offers support for setting
        VF mac via VFINFO data in
        

        the netlink message.  May be it got fixed?
        

      Interesting. If I had one of those systems of my own to test on,
      I'd give it a try. The only one I have access to is running a
      2.6.32 RHEL6 kernel though :-/
      

    It also occurred to me during my copious "time to think" over the
    holidays that device assignment using <interface
    type='hostdev'> wouldn't work for enic cards if that wasn't
    supported, and I recently saw a bug filed where someone was doing
    exactly that on a 3.10 kernel (RHEL7.x), so yeah it must have been
    fixed between 2.6 and 3.10).

    
    To pick up this discussion again: Moshe - am I correct to assume
    that you've filed a bug somewhere about the mlx driver not accepting
    00:00:00:00:00:00?

    
    In the meantime, if setting the MAC address to, e.g.,
    00:00:00:00:00:01 works for you (as implied when you said you use "ip
    link set dev p4p2 vf 0 mac 0") then you could temporarily work
    around the problem by setting all the VFs to something like that at
    boot time - libvirt would then succeed at setting them *back* to
    those addresses when it was finished with each device.

    
--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list