[PATCH v9 09/27] sfc: request cxl ram resource

alejandro.lucero-palau
2024-12-30T21:45:13Z

From: Alejandro Lucero <alucerop@amd.com>

Use cxl accessor for obtaining the ram resource the device advertises.

Signed-off-by: Alejandro Lucero <alucerop@amd.com>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
drivers/net/ethernet/sfc/efx_cxl.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c
index 29368d010adc..2031f08ee689 100644
--- a/drivers/net/ethernet/sfc/efx_cxl.c
+++ b/drivers/net/ethernet/sfc/efx_cxl.c
@@ -85,6 +85,12 @@ int efx_cxl_init(struct efx_probe_data *probe_data)
goto err_resource_set;
}

+ rc = cxl_request_resource(cxl->cxlds, CXL_RES_RAM);
+ if (rc) {
+ pci_err(pci_dev, "CXL request resource failed");
+ goto err_resource_set;
+ }
+
probe_data->cxl = cxl;

return 0;
@@ -99,6 +105,7 @@ int efx_cxl_init(struct efx_probe_data *probe_data)
void efx_cxl_exit(struct efx_probe_data *probe_data)
{
if (probe_data->cxl) {
+ cxl_release_resource(probe_data->cxl->cxlds, CXL_RES_RAM);
kfree(probe_data->cxl->cxlds);
kfree(probe_data->cxl);
}
--
2.17.1