linux-stable.git/tools/testing/cxl, branch v6.8

cxl/test: Add support for qos_class checking

2024-02-17T07:20:34+00:00

Set a fake qos_class to a unique value in order to do simple testing of
qos_class for root decoders and mem devs via user cxl_test. A mock
function is added to set the fake qos_class values for memory device
and overrides cxl_endpoint_parse_cdat() in cxl driver code.

Signed-off-by: Dave Jiang 
Link: https://lore.kernel.org/r/20240206190431.1810289-5-dave.jiang@intel.com
Reviewed-by: Jonathan Cameron 
Signed-off-by: Dan Williams

tools/testing/cxl: Disable "missing prototypes / declarations" warnings

2024-01-22T18:41:59+00:00

Prevent warnings of the form:

tools/testing/cxl/test/mock.c:44:6: error: no previous prototype for
‘__wrap_is_acpi_device_node’ [-Werror=missing-prototypes]

tools/testing/cxl/test/mock.c:63:5: error: no previous prototype for
‘__wrap_acpi_table_parse_cedt’ [-Werror=missing-prototypes]

tools/testing/cxl/test/mock.c:81:13: error: no previous prototype for
‘__wrap_acpi_evaluate_integer’ [-Werror=missing-prototypes]

...by locally disabling some warnings.

It turns out that:

Commit 0fcb70851fbf ("Makefile.extrawarn: turn on missing-prototypes globally")

...in addition to expanding in-tree coverage, also impacts out-of-tree
module builds like those in tools/testing/cxl/.

Filter out the warning options on unit test code that does not effect
mainline builds.

Reviewed-by: Alison Schofield 
Link: https://lore.kernel.org/r/170543983780.460832.10920261849128601697.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams

Merge branch 'for-6.8/cxl-cper' into for-6.8/cxl

2024-01-10T03:21:44+00:00

Pick up the CPER to CXL driver integration work for v6.8. Some
additional cleanup of cper_estatus_print() messages is needed, but that
is to be handled incrementally.

cxl/events: Create a CXL event union

2024-01-09T23:41:22+00:00

The CXL CPER and event log records share everything but a UUID/GUID in
their structures.

Define a cxl_event union without the UUID/GUID to be shared between the
CPER and event log record formats.  Adjust the code to use this union.

Signed-off-by: Ira Weiny 
Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-6-1bb8a4ca2c7a@intel.com
Reviewed-by: Jonathan Cameron 
Acked-by: Ard Biesheuvel 
Signed-off-by: Dan Williams

cxl/events: Separate UUID from event structures

2024-01-09T23:39:38+00:00

The UEFI CXL CPER structure does not include the UUID.  Now that the
UUID is passed separately to the trace event there is no need to have
the UUID in those structures.

Move UUID from the event record header to the raw structures.  Adjust
cxl-test to Create dummy structures for creating test records.

Signed-off-by: Ira Weiny 
Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-5-1bb8a4ca2c7a@intel.com
Reviewed-by: Jonathan Cameron 
Acked-by: Ard Biesheuvel 
Signed-off-by: Dan Williams

cxl/events: Create common event UUID defines

2024-01-09T23:39:38+00:00

Dan points out in review that the cxl_test code could be made better
through the use of UUID's defines rather than being open coded.[1]

Create UUID defines and use them rather than open coding them.

Suggested-by: Dan Williams 
Signed-off-by: Ira Weiny 
Link: http://lore.kernel.org/r/65738d09e30e2_45e0129451@dwillia2-xfh.jf.intel.com.notmuch [1]
Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-3-1bb8a4ca2c7a@intel.com
[djbw: clang-format uuid definitions]
Reviewed-by: Jonathan Cameron 
Acked-by: Ard Biesheuvel 
Signed-off-by: Dan Williams

tools/testing/cxl: Add hostbridge UID string for cxl_test mock hb devices

2023-12-22T23:31:52+00:00

In order to support acpi_device_uid() call, add static string to
acpi_device->pnp.unique_id.

Signed-off-by: Dave Jiang 
Link: https://lore.kernel.org/r/170319622564.2212653.1534465446670631698.stgit@djiang5-mobl3
Signed-off-by: Dan Williams

cxl: Add callback to parse the DSMAS subtables from CDAT

2023-12-22T22:33:10+00:00

Provide a callback function to the CDAT parser in order to parse the
Device Scoped Memory Affinity Structure (DSMAS). Each DSMAS structure
contains the DPA range and its associated attributes in each entry. See
the CDAT specification for details. The device handle and the DPA range
is saved and to be associated with the DSLBIS locality data when the
DSLBIS entries are parsed. The xarray is a local variable. When the
total path performance data is calculated and storred this xarray can be
discarded.

Coherent Device Attribute Table 1.03 2.1 Device Scoped memory Affinity
Structure (DSMAS)

Reviewed-by: Jonathan Cameron 
Signed-off-by: Dave Jiang 
Link: https://lore.kernel.org/r/170319619355.2212653.2675953129671561293.stgit@djiang5-mobl3
Signed-off-by: Dan Williams

cxl: Add cxl_num_decoders_committed() usage to cxl_test

2023-12-05T00:46:14+00:00

Commit 458ba8189cb4 ("cxl: Add cxl_decoders_committed() helper") missed the
conversion for cxl_test. Add usage of cxl_num_decoders_committed() to
replace the open coding.

Suggested-by: Alison Schofield 
Signed-off-by: Dave Jiang 
Reviewed-by: Fan Ni 
Link: https://lore.kernel.org/r/169929160525.824083.11813222229025394254.stgit@djiang5-mobl3
Signed-off-by: Dan Williams

Merge branch 'for-6.7/cxl-rch-eh' into cxl/next

2023-10-31T17:59:00+00:00

Restricted CXL Host (RCH) Error Handling undoes the topology munging of
CXL 1.1 to enabled some AER recovery, and lands some base infrastructure
for handling Root-Complex-Event-Collectors (RCECs) with CXL. Include
this long running series finally for v6.7.