Re: [E1000-devel] igb with SRIOV - PF still resetting?

[Fischer, A. <ann...@hp...>]

> Subject: RE: igb with SRIOV - PF still resetting?
> 
> >From: Fischer, Anna [mailto:ann...@hp...]
> >Sent: Monday, December 14, 2009 6:22 AM
> >To: e10...@li...
> >Subject: [E1000-devel] igb with SRIOV - PF still resetting?
> >
> >I'm using the Intel 82576 1G device with the latest SRIOV drivers on
> an
> >up-to-date 2.6.32 kernel (from kernel.org Linus git tree). The device
> >works fine in non-SRIOV mode, e.g. I call an ifup and the device gets
> an
> >IP address assigned. When I start up the device in SRIOV mode (with
> >modprobe max_vfs=8, for example) then I see the VFs are activated and
> >listed on the PCI bus as well. However, I get the message "PF still
> >resetting" from the VF driver, and none of the interfaces seems to get
> an
> >IP address. It always shows me "Link is not ready". What does that
> mean,
> >and what do I need to configure to get this SRIOV setup to work?
> >
> >Thanks,
> >Anna
> 
> Make sure that the PF device is up. Even if you don't assign it an IP
> address, you still need to have the interface up and running (i.e.
> ifconfig eth1 up) for the VFs to work correctly.

Thanks for the clarification. So in SRIOV mode, the PF is still supposed to be active as a network device in the same way as in non-SRIOV mode? So basically, in SRIOV mode I would have x VFs and 1 PF and all can be used a full network interfaces, e.g. all could have their own IP addresses? Or does the PF functionality change once SRIOV is enabled? For some devices, the PF is only responsible for resource management once SRIOV is enabled.

Thanks,
Anna