RE: [PATCH 3/8] PCI: sysfs per device SRIOV control and status

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On Wed, 2012-10-31 at 17:01 +0000, Rose, Gregory V wrote:
> > -----Original Message-----
> > From: Don Dutile [mailto:ddutile@xxxxxxxxxx]
> > Sent: Friday, October 26, 2012 8:07 AM
> > To: Ben Hutchings
> > Cc: linux-pci@xxxxxxxxxxxxxxx; bhelgaas@xxxxxxxxxx; yuvalmin@xxxxxxxxxxxx;
> > Rose, Gregory V; yinghai@xxxxxxxxxx; davem@xxxxxxxxxxxxx
> > Subject: Re: [PATCH 3/8] PCI: sysfs per device SRIOV control and status
> > 
>  
> > 
> > Ok, my turn:
> > Any feedback on having the sysfs configure call
> > pci_sriov_[enable/disable](), as well as do the don't-disable if VFs are
> > assigned to guests?
> > 
> 
> Don,
> 
> As I've mentioned before I still prefer to have the sysfs interface
> you've written up make the calls to pci_sriov_enable/disable()

I think that would work for sfc, assuming the driver function is to be
called before either of those.  I don't know whether it would work for
any of the other drivers with SR-IOV back-ends, though.

> and have the checking for whether the VFs are assigned to guests done
> there also,

I agree that this is should be centralised, though I think that could be
done as a later step without too much pain.

> but really it isn't anything worth going to the mats about.  As it
> stands I think if you address the issues brought up by Ben then I'm
> fine with what you've worked up so far.  Since no one else seems to
> have an opinion about it (as demonstrated by a lack of response over
> the last 5 days) then I'd suggest we go forward with the current
> implementation.  I'd really like to see this in 3.8 if possible.
> 
> Thanks for all your work.

Agreed, thanks Don.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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