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authorYu Zhao <yu.zhao@intel.com>2009-03-20 11:25:17 +0800
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-03-20 10:48:32 -0700
commit01db4957179c92fda7d9a06e49b7ae56fb7c925b (patch)
treea643400cf322336e38a7755c594518fa891032b9 /Documentation
parent74bb1bcc7dbbc9ddef773bf3395d7ff92aaaad2e (diff)
PCI: document SR-IOV sysfs entries
Reviewed-by: Randy Dunlap <rdunlap@xenotime.net> Reviewed-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Yu Zhao <yu.zhao@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-pci27
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index 3d29793a0ea..d175a2a5fac 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -68,3 +68,30 @@ 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/.../virtfnN
+Date: March 2009
+Contact: Yu Zhao <yu.zhao@intel.com>
+Description:
+ This symbolic link appears when hardware supports the SR-IOV
+ capability and the Physical Function driver has enabled it.
+ The symbolic link points to the PCI device sysfs entry of the
+ Virtual Function whose index is N (0...MaxVFs-1).
+
+What: /sys/bus/pci/devices/.../dep_link
+Date: March 2009
+Contact: Yu Zhao <yu.zhao@intel.com>
+Description:
+ This symbolic link appears when hardware supports the SR-IOV
+ capability and the Physical Function driver has enabled it,
+ and this device has vendor specific dependencies with others.
+ The symbolic link points to the PCI device sysfs entry of
+ Physical Function this device depends on.
+
+What: /sys/bus/pci/devices/.../physfn
+Date: March 2009
+Contact: Yu Zhao <yu.zhao@intel.com>
+Description:
+ This symbolic link appears when a device is a Virtual Function.
+ The symbolic link points to the PCI device sysfs entry of the
+ Physical Function this device associates with.