On Thu, 19 Mar 2009 13:53:12 -0600
Matthew Wilcox <[email protected]> wrote:
> On Wed, Mar 11, 2009 at 03:25:42PM +0800, Yu Zhao wrote:
> > +config PCI_IOV
> > + bool "PCI IOV support"
> > + depends on PCI
> > + help
> > + PCI-SIG I/O Virtualization (IOV) Specifications support.
> > + Single Root IOV: allows the creation of virtual PCI
> > devices
> > + that share the physical resources from a real device.
> > +
> > + When in doubt, say N.
>
> It's certainly shorter than my text, which is nice. But I think it
> still has too much spec-ese and not enough explanation. How about:
>
> help
> I/O Virtualization is a PCI feature supported by some
> devices which allows them to create virtual devices which share their
> physical resources.
>
> If unsure, say N.
>
> > + list_for_each_entry(pdev, &dev->bus->devices, bus_list)
> > + if (pdev->is_physfn)
> > + break;
> > + if (list_empty(&dev->bus->devices) || !pdev->is_physfn)
> > + pdev = NULL;
>
> This is still wrong. If the 'break' condition is not hit, pdev is
> pointing to garbage, not to the last pci_dev in the list.
>
> > @@ -270,6 +278,7 @@ struct pci_dev {
> > struct list_head msi_list;
> > #endif
> > struct pci_vpd *vpd;
> > + struct pci_sriov *sriov; /* SR-IOV capability
> > related */
>
> Should be ifdeffed?
Ok Yu, I'm ready to apply this set, can you send an updated one with
the fixes Matthew mentioned?
Thanks,
--
Jesse Barnes, Intel Open Source Technology Center
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