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authorDan Williams <dan.j.williams@intel.com>2023-02-07 22:12:24 +0300
committerDan Williams <dan.j.williams@intel.com>2023-02-07 22:12:24 +0300
commit5485eb955994a238eafd08d9266005b1c9ac7991 (patch)
treefad2a31e1f9340de6aecbec16fa18509409ff5d1 /Documentation/ABI
parent711442e29f16f0d39dd0e2460c9baacfccb9d5a7 (diff)
parent623c0751336e4035ab0047f2c152a02bd26b612b (diff)
downloadlinux-5485eb955994a238eafd08d9266005b1c9ac7991.tar.xz
Merge branch 'for-6.3/cxl' into cxl/next
Merge the general CXL updates with fixes targeting v6.2-rc for v6.3. Resolve a conflict with the fix and move of cxl_report_and_clear() from pci.c to core/pci.c.
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-cxl15
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
index 8494ef27e8d2..329a7e46c805 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -90,6 +90,21 @@ Description:
capability.
+What: /sys/bus/cxl/devices/{port,endpoint}X/parent_dport
+Date: January, 2023
+KernelVersion: v6.3
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) CXL port objects are instantiated for each upstream port in
+ a CXL/PCIe switch, and for each endpoint to map the
+ corresponding memory device into the CXL port hierarchy. When a
+ descendant CXL port (switch or endpoint) is enumerated it is
+ useful to know which 'dport' object in the parent CXL port
+ routes to this descendant. The 'parent_dport' symlink points to
+ the device representing the downstream port of a CXL switch that
+ routes to {port,endpoint}X.
+
+
What: /sys/bus/cxl/devices/portX/dportY
Date: June, 2021
KernelVersion: v5.14