diff mbox series

[v12,20/23] sfc: create cxl region

Message ID 20250331144555.1947819-21-alejandro.lucero-palau@amd.com
State New
Headers show
Series cxl: add type2 device basic support | expand

Commit Message

Lucero Palau, Alejandro March 31, 2025, 2:45 p.m. UTC 
From: Alejandro Lucero <alucerop@amd.com>

Use cxl api for creating a region using the endpoint decoder related to
a DPA range specifying no DAX device should be created.

Signed-off-by: Alejandro Lucero <alucerop@amd.com>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/net/ethernet/sfc/efx_cxl.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c
index 20eb1dfa8c65..424efc61cc84 100644
--- a/drivers/net/ethernet/sfc/efx_cxl.c
+++ b/drivers/net/ethernet/sfc/efx_cxl.c
@@ -114,10 +114,19 @@  int efx_cxl_init(struct efx_probe_data *probe_data)
 		goto sfc_put_decoder;
 	}
 
+	cxl->efx_region = cxl_create_region(cxl->cxlrd, cxl->cxled, 1, true);
+	if (IS_ERR(cxl->efx_region)) {
+		pci_err(pci_dev, "CXL accel create region failed");
+		rc = PTR_ERR(cxl->efx_region);
+		goto err_region;
+	}
+
 	probe_data->cxl = cxl;
 
 	return 0;
 
+err_region:
+	cxl_dpa_free(probe_data->cxl->cxled);
 sfc_put_decoder:
 	cxl_put_root_decoder(cxl->cxlrd);
 	return rc;
@@ -126,6 +135,7 @@  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_accel_region_detach(probe_data->cxl->cxled);
 		cxl_dpa_free(probe_data->cxl->cxled);
 		cxl_put_root_decoder(probe_data->cxl->cxlrd);
 	}