linux-kernel - [PATCH 3/3] Drivers: hv: vmbus: document the VMBus sysfs files

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Message-Id: <1437409745-11061-3-git-send-email-kys@microsoft.com>
Date:	Mon, 20 Jul 2015 09:29:05 -0700
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	vkuznets@...hat.com, jasowang@...hat.com
Cc:	Dexuan Cui <decui@...rosoft.com>,
	"K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH 3/3] Drivers: hv: vmbus: document the VMBus sysfs files

From: Dexuan Cui <decui@...rosoft.com>

The 4 sysfs files should be stable ABIs to the user space.

Signed-off-by: Dexuan Cui <decui@...rosoft.com>
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
---
 Documentation/ABI/stable/sysfs-bus-vmbus |   29 +++++++++++++++++++++++++++++
 MAINTAINERS                              |    1 +
 2 files changed, 30 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/ABI/stable/sysfs-bus-vmbus

diff --git a/Documentation/ABI/stable/sysfs-bus-vmbus b/Documentation/ABI/stable/sysfs-bus-vmbus
new file mode 100644
index 0000000..636e938
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-bus-vmbus
@@ -0,0 +1,29 @@
+What:		/sys/bus/vmbus/devices/vmbus_*/id
+Date:		Jul 2009
+KernelVersion:	2.6.31
+Contact:	K. Y. Srinivasan <kys@...rosoft.com>
+Description:	The VMBus child_relid of the device's primary channel
+Users:		tools/hv/lsvmbus
+
+What:		/sys/bus/vmbus/devices/vmbus_*/class_id
+Date:		Jul 2009
+KernelVersion:	2.6.31
+Contact:	K. Y. Srinivasan <kys@...rosoft.com>
+Description:	The VMBus interface type GUID of the device
+Users:		tools/hv/lsvmbus
+
+What:		/sys/bus/vmbus/devices/vmbus_*/device_id
+Date:		Jul 2009
+KernelVersion:	2.6.31
+Contact:	K. Y. Srinivasan <kys@...rosoft.com>
+Description:	The VMBus interface instance GUID of the device
+Users:		tools/hv/lsvmbus
+
+What:		/sys/bus/vmbus/devices/vmbus_*/channel_vp_mapping
+Date:		Jul 2015
+KernelVersion:	4.2.0
+Contact:	K. Y. Srinivasan <kys@...rosoft.com>
+Description:	The mapping of which primary/sub channels are bound to which
+		Virtual Processors.
+		Format: <channel's child_relid:the bound cpu's number>
+Users:		tools/hv/lsvmbus
diff --git a/MAINTAINERS b/MAINTAINERS
index fd60784..45ef1e1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4956,6 +4956,7 @@ F:	drivers/scsi/storvsc_drv.c
 F:	drivers/video/fbdev/hyperv_fb.c
 F:	include/linux/hyperv.h
 F:	tools/hv/
+F:	Documentation/ABI/stable/sysfs-bus-vmbus
 
 I2C OVER PARALLEL PORT
 M:	Jean Delvare <jdelvare@...e.de>
-- 
1.7.4.1

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