Re: [PATCH 0/13 v7] PCI: Linux kernel SR-IOV support

[Zhao, Yu]

Greg KH wrote:
> On Wed, Dec 17, 2008 at 10:37:54AM +0800, Jike Song wrote:
> > Jesse Barnes wrote:
> > > Given a respin of 10-13 I think it's reasonable to merge this into 2.6.29, but 
> > > I'd be much happier about it if we got some driver code along with it, so as 
> > > not to have an unused interface sitting around for who knows how many 
> > > releases.  Is that reasonable?  Do you know if any of the corresponding PF/VF 
> > > driver bits are ready yet?
> > Hi Jesse, 
> >
> > Yu Zhao has posted a patch set with subject "SR-IOV driver example" 
> > at November 26, which illustrated the usage of SR-IOV API in Intel 82576 VF/PF
> > drivers;-)
>
> Yes, but that driver was soundly rejected by the network driver
> maintainers, so I wouldn't go around showing that as your primary
> example of how to use this interface :)
>
> The point is valid, I don't think these apis should go into the tree
> without a driver or some other code using them.  Otherwise they make no
> sense at all to have in-tree.

I agree the point is valid, but on another hand this is a 'the chicken & 
the egg' problem -- if we don't have the SR-IOV base, people who are 
developing PF drivers can not get their changes in-tree. Maybe they are 
holding the patches and waiting on the infrastructure... :-)
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