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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Dec 2025 11:53:25.1991 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7d3f127e-f3c7-4a21-a038-08de33f4e5bd X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF000015CA.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB9423 From: Alejandro Lucero Use cxl api for getting DPA (Device Physical Address) to use through an endpoint decoder. Signed-off-by: Alejandro Lucero Reviewed-by: Martin Habets Acked-by: Edward Cree Reviewed-by: Jonathan Cameron Reviewed-by: Ben Cheatham Reviewed-by: Dave Jiang --- drivers/net/ethernet/sfc/efx_cxl.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c index d0e907034960..56e7104483a5 100644 --- a/drivers/net/ethernet/sfc/efx_cxl.c +++ b/drivers/net/ethernet/sfc/efx_cxl.c @@ -128,6 +128,14 @@ int efx_cxl_init(struct efx_probe_data *probe_data) cxl_put_root_decoder(cxl->cxlrd); return -ENOSPC; } + + cxl->cxled = cxl_request_dpa(cxl->cxlmd, CXL_PARTMODE_RAM, + EFX_CTPIO_BUFFER_SIZE); + if (IS_ERR(cxl->cxled)) { + pci_err(pci_dev, "CXL accel request DPA failed"); + cxl_put_root_decoder(cxl->cxlrd); + return PTR_ERR(cxl->cxled); + } } probe_data->cxl = cxl; @@ -146,6 +154,7 @@ void efx_cxl_exit(struct efx_probe_data *probe_data) DETACH_INVALIDATE); unregister_region(probe_data->cxl->efx_region); } else { + cxl_dpa_free(probe_data->cxl->cxled); cxl_put_root_decoder(probe_data->cxl->cxlrd); } } -- 2.34.1