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SubjectRe: REPOST: [PATCH] Add iSCSI iBFT support (v0.4.7)
Greg KH wrote:
> On Mon, Feb 11, 2008 at 06:35:16PM -0500, Konrad Rzeszutek wrote:
>>>> + if (hdr->id == id_nic) {
>>>> + pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >>
>>>> 8, + (nic->pci_bdf & 0xff));
>>> pci_get_bus_and_slot fails in the presence of PCI domains, which are
>>> getting to be fairly common even in medium sized servers ... what
>>> happens in that case?
>> The specification did not take that in to account. The Bus/Dev/Func
>> information is only present there - no domain information.
>
> That's really broken then. Common i386 boxes these days have multiple
> PCI domains, it's not all that uncommon at all.
>
> And almost all big 64 bit boxes have them.

Yes, but common x86 boxes can't *boot* from anything but domain 0 (in
particular, the domain which the cf8/cfc registers on the boot processor
activate.)

-hpa


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