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

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Message-ID: <20081121184359.GM7810@yzhao12-linux.sh.intel.com>
Date:	Sat, 22 Nov 2008 02:43:59 +0800
From:	Yu Zhao <yu.zhao@...el.com>
To:	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Cc:	"achiang@...com" <achiang@...com>,
	"bjorn.helgaas@...com" <bjorn.helgaas@...com>,
	"grundler@...isc-linux.org" <grundler@...isc-linux.org>,
	"greg@...ah.com" <greg@...ah.com>, "mingo@...e.hu" <mingo@...e.hu>,
	"jbarnes@...tuousgeek.org" <jbarnes@...tuousgeek.org>,
	"matthew@....cx" <matthew@....cx>,
	"randy.dunlap@...cle.com" <randy.dunlap@...cle.com>,
	"rdreier@...co.com" <rdreier@...co.com>,
	"horms@...ge.net.au" <horms@...ge.net.au>,
	"yinghai@...nel.org" <yinghai@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"virtualization@...ts.linux-foundation.org" 
	<virtualization@...ts.linux-foundation.org>
Subject: [PATCH 12/13 v7] PCI: document the SR-IOV sysfs entries

Document the SR-IOV sysfs entries.

Signed-off-by: Yu Zhao <yu.zhao@...el.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@...el.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@...el.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@...el.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

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