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    SubjectRe: [PATCH 4/6] pci/dmar/sriov: use physfn to search drhd for VF
    * Yinghai ( wrote:
    > --- linux-2.6.orig/drivers/pci/dmar.c
    > +++ linux-2.6/drivers/pci/dmar.c
    > @@ -534,6 +534,8 @@ dmar_find_matched_drhd_unit(struct pci_d
    > struct dmar_drhd_unit *dmaru = NULL;
    > struct acpi_dmar_hardware_unit *drhd;
    > + dev = pci_physfn(dev);
    > +

    Yeah, we typically don't have enough VF's to wrap bus numbers, or we're
    under a catchall IOMMU. In the catchall case both vf->bus and vf->pf->bus
    will have the same domain (segment) regardless of whether we have large
    VF count or big offset/stride. So, I suppose this could be done inside
    of dmar_pci_device_match().

    Otherwise, I think you'd want to add the same thing to
    dmar_find_matched_atsr_unit() since it's the same device scopes there.


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      Last update: 2010-04-09 01:27    [W:0.042 / U:0.484 seconds]
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