Re: SR-IOV: patches are available for Linux kernel [4/4]

[Greg KH <greg@kroah.com>]

On Wed, Aug 13, 2008 at 01:09:16PM -0700, Randy Dunlap wrote:
> On Tue, 12 Aug 2008 16:46:39 +0800 Zhao, Yu wrote:
> 
> > [PATCH 4/4] PCI: document SR-IOV
> > 
> > SR-IOV Documentation.
> > 
> > Signed-off-by: Yu Zhao <yu.zhao@intel.com>
> > Signed-off-by:  Eddie Dong <eddie.dong@intel.com>
> > 
> > ---
> >  Documentation/ABI/testing/sysfs-bus-pci |   13 ++
> >  Documentation/PCI/00-INDEX              |    2 
> >  Documentation/PCI/pci-iov-howto.txt     |  170 +++++++++++++++++++++++++++++++
> >  3 files changed, 185 insertions(+), 0 deletions(-)
> > 
> > diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
> > index ceddcff..9ada27b 100644
> > --- a/Documentation/ABI/testing/sysfs-bus-pci
> > +++ b/Documentation/ABI/testing/sysfs-bus-pci
> > @@ -9,3 +9,16 @@ Description:
> >  		that some devices may have malformatted data.  If the
> >  		underlying VPD has a writable section then the
> >  		corresponding section of this file will be writable.
> > +
> > +What:		/sys/bus/pci/devices/.../iov
> > +Date:		August 2008
> > +Contact:	Yu Zhao <yu.zhao@intel.com>
> > +Description:
> > +		This file will appear when SR-IOV capability is enabled
> > +		by the device driver if supported. It holds number of
> > +		available Virtual Functions and Bus, Device, Function
> > +		number and status of these Virtual Functions that belong
> > +		to this device (Physical Function). This file can be
> 
> This one file contains available VFs, Bus:dev:Func number, and status?
> Sounds like a misuse (abuse) of sysfs "one value per file" mantra, but I'll
> read below to see how it's done.
> 
> [added GregKH to cc: list]

I agree, why not just display the device tree of available devices like
all other busses do?

thanks,

greg k-h