Messages in this thread | | | Date | Fri, 06 Mar 2009 14:35:24 -0800 | From | Randy Dunlap <> | Subject | Re: [PATCH v10 6/7] PCI: document SR-IOV sysfs entries |
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Matthew Wilcox wrote: > Randy, can you wordsmith this one?
I'll try.
> I think I'm starting to understand the difference between physfn and > dep_link, but an example would definitely help. It may or may not be > appropriate to put it in. > > On Fri, Feb 20, 2009 at 02:54:47PM +0800, Yu Zhao wrote: >> Signed-off-by: Yu Zhao <yu.zhao@intel.com> >> --- >> Documentation/ABI/testing/sysfs-bus-pci | 27 +++++++++++++++++++++++++++ >> 1 files changed, 27 insertions(+), 0 deletions(-) >> >> diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci >> index ceddcff..84dc100 100644 >> --- a/Documentation/ABI/testing/sysfs-bus-pci >> +++ b/Documentation/ABI/testing/sysfs-bus-pci >> @@ -9,3 +9,30 @@ 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/.../virtfn/N >> +Date: February 2009 >> +Contact: Yu Zhao <yu.zhao@intel.com> >> +Description: >> + This symbol link appears when hardware supports SR-IOV
symbolic supports the SR-IOV
>> + capability and Physical Function driver has enabled it.
^the | its | a
>> + The symbol link points to the PCI device sysfs entry of
symbolic
>> + Virtual Function whose index is N (0...MaxVFs-1).
the Virtual Function
>> + >> +What: /sys/bus/pci/devices/.../virtfn/dep_link >> +Date: February 2009 >> +Contact: Yu Zhao <yu.zhao@intel.com> >> +Description: >> + This symbol link appears when hardware supports SR-IOV
symbolic supports the SR-IOV
>> + capability and Physical Function driver has enabled it,
^its | the | a
>> + and this device has vendor specific dependencies with >> + others. The symbol link points to the PCI device sysfs
symbolic
>> + entry of Physical Function this device depends on. >> + >> +What: /sys/bus/pci/devices/.../physfn >> +Date: February 2009 >> +Contact: Yu Zhao <yu.zhao@intel.com> >> +Description: >> + This symbol link appears when a device is Virtual Function.
symbolic is a Virtual Function.
>> + The symbol link points to the PCI device sysfs entry of
symbolic entry of the
>> + Physical Function this device associates with.
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