[PATCH 12/13 v7] PCI: document the SR-IOV sysfs entries

[Yu Zhao <yu.zhao@intel.com>]

Document the SR-IOV sysfs entries.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>

---
 Documentation/ABI/testing/sysfs-bus-pci |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index ceddcff..d66d63d 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -9,3 +9,29 @@ 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/total_virtfn
+Date:		November 2008
+Contact:	Yu Zhao <yu.zhao@intel.com>
+Description:
+		This file appears when a device has the SR-IOV capability
+		and the device driver (PF driver) support this operation.
+		It holds the number of total Virtual Functions (read-only).
+
+What:		/sys/bus/pci/devices/.../iov/initial_virtfn
+Date:		November 2008
+Contact:	Yu Zhao <yu.zhao@intel.com>
+Description:
+		This file appears when a device has the SR-IOV capability
+		and the device driver (PF driver) support this operation.
+		It holds the number of initial Virtual Functions (read-only).
+
+What:		/sys/bus/pci/devices/.../iov/nr_virtfn
+Date:		November 2008
+Contact:	Yu Zhao <yu.zhao@intel.com>
+Description:
+		This file appears when a device has the SR-IOV capability
+		and the device driver (PF driver) support this operation.
+		It holds the number of available Virtual Functions, and
+		could be written (0 ~ InitialVFs) to change the number of
+		the Virtual Functions.
-- 
1.5.6.4