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Commit 01db4957 authored by Yu Zhao's avatar Yu Zhao Committed by Jesse Barnes
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PCI: document SR-IOV sysfs entries 



Reviewed-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
Reviewed-by: default avatarMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: default avatarYu Zhao <yu.zhao@intel.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
parent 74bb1bcc

Documentation/ABI/testing/sysfs-bus-pci

+27 −0
Original line number Diff line number Diff line
@@ -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.