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From: Chris Wright on 8 Apr 2010 20:20
* Yinghai (yinghai.lu(a)oracle.com) wrote:
> Subject: [PATCH] pci/dmar/sriov: use physfn to search drhd for VF
>
> When virtfn is used, we should use physfn to find correct drhd
>
> -v2: add pci_physfn() Suggested by Roland Dreier <rdreier(a)cisco.com>
> do can remove ifdef in dmar.c
> -v3: Chris pointed out we need that for dma_find_matched_atsr_unit too
> also change dmar_pci_device_match() static
>
> Signed-off-by: Yinghai Lu <yinghai(a)kernel.org>
> Acked-by: Roland Dreier <rdreier(a)cisco.com>

Looks good

Acked-by: Chris Wright <chrisw(a)sous-sol.org>
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From: Jesse Barnes on 9 Apr 2010 12:00
On Thu, 08 Apr 2010 17:07:55 -0700
Yinghai <yinghai.lu(a)oracle.com> wrote:

> On 04/08/2010 04:24 PM, Chris Wright wrote:
> > * Yinghai (yinghai.lu(a)oracle.com) 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.
>
> please check
>
> Subject: [PATCH] pci/dmar/sriov: use physfn to search drhd for VF
>
> When virtfn is used, we should use physfn to find correct drhd
>
> -v2: add pci_physfn() Suggested by Roland Dreier <rdreier(a)cisco.com>
> do can remove ifdef in dmar.c
> -v3: Chris pointed out we need that for dma_find_matched_atsr_unit too
> also change dmar_pci_device_match() static
>
> Signed-off-by: Yinghai Lu <yinghai(a)kernel.org>
> Acked-by: Roland Dreier <rdreier(a)cisco.com>

This one looks good:

Acked-by: Jesse Barnes <jbarnes(a)virtuousgeek.org>

Thanks,
--
Jesse Barnes, Intel Open Source Technology Center
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