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@xxxxxxxxx> >> --- >> 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@xxxxxxxxx> >> +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@xxxxxxxxx> >> +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@xxxxxxxxx> >> +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. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
