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" ?