That Subject: got truncated, is:
cxl/region: create-region command and unit test fixups
On Mon, Sep 28, 2026 at 10:36:52PM -0700, Alison Schofield wrote:
> While working to enhance the cxl-cli cxl-create-region command to handle
> out-of-order target lists or no user-supplied target list, I ran into some
> basic issues in the existing command that need to be addressed first.
>
> Patches 1-2 consolidate and clean up the existing create-region tests.
>
> Patches 3-6 fix target-list parsing and validation, release DPA after a
> failed create, and move granularity validation ahead of region creation.
> Each fix adds a test case for the problem it addresses.
>
> Patch 7 corrects the documentation to reflect that --decoder is currently
> required. Automatic root decoder selection will be considered separately
> with the upcoming create-region usability work.
>
> Developing tests for these fixes exposed two bugs and a topology gap in
> the cxl_test mock module. A companion cxl_test series is here [1].
>
>
> [1]
> https://lore.kernel.org/linux-cxl/[email protected]/
>
> Alison Schofield (7):
> test/cxl-create-region.sh: fold in XOR coverage
> test/cxl-create-region.sh: deduplicate topology lookups
> cxl/region: parse comma-separated target lists
> cxl/region: reject duplicate or unknown target memdevs
> cxl/region: release reserved DPA when region creation fails
> cxl/region: validate granularity before region creation
> cxl/region: document --decoder as required
>
> Documentation/cxl/cxl-create-region.txt | 7 +-
> cxl/region.c | 139 ++++++++--
> test/cxl-create-region.sh | 338 ++++++++++++++++++++++--
> test/cxl-xor-region.sh | 129 ---------
> test/meson.build | 2 -
> 5 files changed, 442 insertions(+), 173 deletions(-)
> delete mode 100644 test/cxl-xor-region.sh
>
> --
> 2.37.3
>
