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Re: [libvirt] [PATCH REPOST v2 0/3] Add callback mech for qemu and nodedev



On Wed, Feb 22, 2017 at 03:10:00PM +0100, Paolo Bonzini wrote:
> 
> 
> On 22/02/2017 14:46, Daniel P. Berrange wrote:
> > On Wed, Feb 22, 2017 at 02:38:32PM +0100, Paolo Bonzini wrote:
> >>
> >>
> >> On 22/02/2017 11:05, Daniel P. Berrange wrote:
> >>> I'd also suggest just assigning the whole vHBA
> >>
> >> What do you mean by "assigning the whole vHBA"?  There is no concept of
> >> a vHBA as e.g. a PCI virtual function.
> > 
> > I thought we had a generic SCSI passthrough capability that could
> > attach to the SCSI vHBA in the host, or am I mis-remembering ?
> 
> No, the SCSI passthrough capability attaches to a single device.
> 
> With Fibre Channel, zoning allows you to configure the set of visible
> disks for each machine (or more accurately for each WWPN and/or WWNN) at
> the storage fabric level.  So the idea is to just configure the
> WWPN/WWNN and let libvirt handle the discovery of disks underneath.  The
> alternative is to do it in both oVirt and Nova though, as mentioned
> elsewhere in the thread, libvirt could still provide a udev wrapper.

What do you mean by "provide a udev wrapper" ?

Regards,
Daniel
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