linux-kernel - [PATCHv3 05/13] Documentation/ABI: Add new node sysfs attributes

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Date:   Wed,  9 Jan 2019 10:43:33 -0700
From:   Keith Busch <keith.busch@...el.com>
To:     linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-mm@...ck.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rafael Wysocki <rafael@...nel.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Keith Busch <keith.busch@...el.com>
Subject: [PATCHv3 05/13] Documentation/ABI: Add new node sysfs attributes

Add entries for memory initiator and target node class attributes.

Signed-off-by: Keith Busch <keith.busch@...el.com>
---
 Documentation/ABI/stable/sysfs-devices-node | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node
index 3e90e1f3bf0a..a9c47b4b0eee 100644
--- a/Documentation/ABI/stable/sysfs-devices-node
+++ b/Documentation/ABI/stable/sysfs-devices-node
@@ -90,4 +90,27 @@ Date:		December 2009
 Contact:	Lee Schermerhorn <lee.schermerhorn@...com>
 Description:
 		The node's huge page size control/query attributes.
-		See Documentation/admin-guide/mm/hugetlbpage.rst
\ No newline at end of file
+		See Documentation/admin-guide/mm/hugetlbpage.rst
+
+What:		/sys/devices/system/node/nodeX/classY/
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@...el.com>
+Description:
+		The node's relationship to other nodes for access class "Y".
+
+What:		/sys/devices/system/node/nodeX/classY/initiator_nodelist
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@...el.com>
+Description:
+		The node list of memory initiators that have class "Y" access
+		to this node's memory. CPUs and other memory initiators in
+		nodes not in the list accessing this node's memory may have
+		different performance.
+
+What:		/sys/devices/system/node/nodeX/classY/target_nodelist
+Date:		December 2018
+Contact:	Keith Busch <keith.busch@...el.com>
+Description:
+		The node list of memory targets that this initiator node has
+		class "Y" access. Memory accesses from this node to nodes not
+		in this list may have differet performance.
-- 
2.14.4