Messages in this thread |  | | | Date | Tue, 7 Feb 2012 13:10:41 +0200 | | From | "Michael S. Tsirkin" <> | | Subject | Re: Pe: [PATCH v5 1/3] virtio-scsi: first version |
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On Tue, Feb 07, 2012 at 10:54:54AM +0100, Paolo Bonzini wrote: > >Also, lun[1] = sc->device->id means that only 255 SCSI target IDs will be > >supported. Think about bigger usage scenarios, such as FCP networks with > >several hundred HBAs in the net. If you want to have the target ID<->HBA > >mapping the same as on the guest as on the host, then 255 virtual target > >IDs could be a limit. > > I think you would hit other scalability limitations well before > that. I plan to give each target its own MSI-X interrupt, but there > is no infinite supplies of those either.
virtio-pci generally lets guests share MSI-X vectors between queues, why not allow this here?
-- MST
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