diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2024-03-09 00:59:26 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2024-03-12 22:34:11 +0300 |
| commit | 6ef83c4e19e9ce20a05127eec8a10911cf3516a7 (patch) | |
| tree | 5f96b10dea54c7a94a63ca69a6a072d3a45a7da7 /drivers/cxl | |
| parent | 863027d40993f13155451bd898bfe4c4e9b7002f (diff) | |
| download | linux-6ef83c4e19e9ce20a05127eec8a10911cf3516a7.tar.xz | |
cxl: Move QoS class to be calculated from the nearest CPU
Retrieve the qos_class (QTG ID) using the access coordinates from the
nearest CPU rather than the nearst initiator that may not be a CPU.
This may be the more appropriate number that applications care about.
For most cases, access0 and access1 have the same values.
Link: https://lore.kernel.org/linux-cxl/20240112113023.00006c50@Huawei.com/
Suggested-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20240308220055.2172956-8-dave.jiang@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl')
| -rw-r--r-- | drivers/cxl/core/cdat.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/cxl/core/cdat.c b/drivers/cxl/core/cdat.c index 04dfda9d1f1b..02e97a90a43c 100644 --- a/drivers/cxl/core/cdat.c +++ b/drivers/cxl/core/cdat.c @@ -198,12 +198,12 @@ static int cxl_port_perf_data_calculate(struct cxl_port *port, * coordinates in order to allow calculation of access class * 0 and 1 for region later. */ - cxl_coordinates_combine(&coord[ACCESS_COORDINATE_LOCAL], - &coord[ACCESS_COORDINATE_LOCAL], + cxl_coordinates_combine(&coord[ACCESS_COORDINATE_CPU], + &coord[ACCESS_COORDINATE_CPU], &dent->coord); dent->entries = 1; rc = cxl_root->ops->qos_class(cxl_root, - &coord[ACCESS_COORDINATE_LOCAL], + &coord[ACCESS_COORDINATE_CPU], 1, &qos_class); if (rc != 1) continue; |