diff mbox series

[v4,18/26] sfc: get endpoint decoder

Message ID 20241017165225.21206-19-alejandro.lucero-palau@amd.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series cxl: add Type2 device support | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Lucero Palau, Alejandro Oct. 17, 2024, 4:52 p.m. UTC 
From: Alejandro Lucero <alucerop@amd.com>

Use cxl api for getting DPA (Device Phisical Address) to use through an
endpoint decoder.

Signed-off-by: Alejandro Lucero <alucerop@amd.com>
---
 drivers/net/ethernet/sfc/efx_cxl.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c
index 399bd60f2e40..c0da75b2d8e1 100644
--- a/drivers/net/ethernet/sfc/efx_cxl.c
+++ b/drivers/net/ethernet/sfc/efx_cxl.c
@@ -119,6 +119,14 @@  int efx_cxl_init(struct efx_nic *efx)
 		goto err3;
 	}
 
+	cxl->cxled = cxl_request_dpa(cxl->cxlmd, true, EFX_CTPIO_BUFFER_SIZE,
+				     EFX_CTPIO_BUFFER_SIZE);
+	if (!cxl->cxled || IS_ERR(cxl->cxled)) {
+		pci_err(pci_dev, "CXL accel request DPA failed");
+		rc = PTR_ERR(cxl->cxlrd);
+		goto err3;
+	}
+
 	efx->cxl = cxl;
 #endif
 
@@ -140,6 +148,7 @@  void efx_cxl_exit(struct efx_nic *efx)
 {
 #if IS_ENABLED(CONFIG_CXL_BUS)
 	if (efx->cxl) {
+		cxl_dpa_free(efx->cxl->cxled);
 		cxl_release_resource(efx->cxl->cxlds, CXL_RES_RAM);
 		kfree(efx->cxl->cxlds);
 		kfree(efx->cxl);