Commit 17218b02 authored by Davidlohr Bueso's avatar Davidlohr Bueso Committed by Dave Jiang
Browse files

cxl: Document missing sysfs files 



Add to the ABI documentation the payload_max and label_storage_size
read-only files, which have been there since the early days.

Signed-off-by: default avatarDavidlohr Bueso <dave@stgolabs.net>
Reviewed-by: default avatarLi Ming <ming.li@zohomail.com>
Reviewed-by: default avatarDave Jiang <dave.jiang@intel.com>
Reviewed-by: default avatarIra Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20250218224853.67457-3-dave@stgolabs.net


Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
parent eb8081bc

Documentation/ABI/testing/sysfs-bus-cxl

+18 −0
Original line number Diff line number Diff line
@@ -18,6 +18,24 @@ Description: 
		specification.





What:		/sys/bus/cxl/devices/memX/payload_max

Date:		December, 2020

KernelVersion:	v5.12

Contact:	linux-cxl@vger.kernel.org

Description:

		(RO) Maximum size (in bytes) of the mailbox command payload

		registers. Linux caps this at 1MB if the device reports a

		larger size.





What:		/sys/bus/cxl/devices/memX/label_storage_size

Date:		May, 2021

KernelVersion:	v5.13

Contact:	linux-cxl@vger.kernel.org

Description:

		(RO) Size (in bytes) of the Label Storage Area (LSA).





What:		/sys/bus/cxl/devices/memX/ram/size

Date:		December, 2020

KernelVersion:	v5.12