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SubjectRe: [RFC v2] virtio: add virtio-over-PCI driver
On Thu, Feb 26, 2009 at 05:53:56PM +0100, Geert Uytterhoeven wrote:
> On Thu, 26 Feb 2009, Arnd Bergmann wrote:
> > On Tuesday 24 February 2009, Ira Snyder wrote:
> > > +/* Virtio-over-PCI descriptors: 12 bytes. These can chain together via "next" */
> > > +struct vop_desc {
> > > + /* Address (host physical) */
> > > + __le32 addr;
> ^^^^
> Only 32-bit? Is this future-proof?
>

Probably not. If I use __le64 instead, how do I write 64 bytes over the
PCI bus? There isn't an iowrite64()/ioread64() anywhere in Linux.

Thanks,
Ira


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