From: Fan Ni <fan.ni@samsung.com>

Before the change, the QMP interface used for add/release DC extents
only allows to release an extent whose DPA range is contained by a single
accepted extent in the device.

With the change, we relax the constraints.  As long as the DPA range of
the extent is covered by accepted extents, we allow the release.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Fan Ni <fan.ni@samsung.com>
---
 hw/mem/cxl_type3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c
index a3e1a5de25..9e725647f1 100644
--- a/hw/mem/cxl_type3.c
+++ b/hw/mem/cxl_type3.c
@@ -1941,7 +1941,7 @@ static void qmp_cxl_process_dynamic_capacity_prescriptive(const char *path,
                            "cannot release extent with pending DPA range");
                 return;
             }
-            if (!cxl_extents_contains_dpa_range(&dcd->dc.extents, dpa, len)) {
+            if (!ct3_test_region_block_backed(dcd, dpa, len)) {
                 error_setg(errp,
                            "cannot release extent with non-existing DPA range");
                 return;
-- 
2.43.0

On Thu, Apr 18, 2024 at 04:11:03PM -0700, nifan.cxl@gmail.com wrote:
> From: Fan Ni <fan.ni@samsung.com>
> 
> Before the change, the QMP interface used for add/release DC extents
> only allows to release an extent whose DPA range is contained by a single
> accepted extent in the device.
> 
> With the change, we relax the constraints.  As long as the DPA range of
> the extent is covered by accepted extents, we allow the release.
> 
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Signed-off-by: Fan Ni <fan.ni@samsung.com>
> ---
>  hw/mem/cxl_type3.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reveiwed-by: Gregory Price <gregory.price@memverge.com>

> diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c
> index a3e1a5de25..9e725647f1 100644
> --- a/hw/mem/cxl_type3.c
> +++ b/hw/mem/cxl_type3.c
> @@ -1941,7 +1941,7 @@ static void qmp_cxl_process_dynamic_capacity_prescriptive(const char *path,
>                             "cannot release extent with pending DPA range");
>                  return;
>              }
> -            if (!cxl_extents_contains_dpa_range(&dcd->dc.extents, dpa, len)) {
> +            if (!ct3_test_region_block_backed(dcd, dpa, len)) {
>                  error_setg(errp,
>                             "cannot release extent with non-existing DPA range");
>                  return;
> -- 
> 2.43.0
>