netdev - [PATCH v4 14/26] sfc: create type2 cxl memdev

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Message-ID: <20241017165225.21206-15-alejandro.lucero-palau@amd.com>
Date: Thu, 17 Oct 2024 17:52:13 +0100
From: <alejandro.lucero-palau@....com>
To: <linux-cxl@...r.kernel.org>, <netdev@...r.kernel.org>,
	<dan.j.williams@...el.com>, <martin.habets@...inx.com>,
	<edward.cree@....com>, <davem@...emloft.net>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <edumazet@...gle.com>
CC: Alejandro Lucero <alucerop@....com>
Subject: [PATCH v4 14/26] sfc: create type2 cxl memdev

From: Alejandro Lucero <alucerop@....com>

Use cxl API for creating a cxl memory device using the type2
cxl_dev_state struct.

Signed-off-by: Alejandro Lucero <alucerop@....com>
---
 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 419cf9fb6bd0..452421d71fbf 100644
--- a/drivers/net/ethernet/sfc/efx_cxl.c
+++ b/drivers/net/ethernet/sfc/efx_cxl.c
@@ -94,12 +94,21 @@ int efx_cxl_init(struct efx_nic *efx)
 	 */
 	cxl_set_media_ready(cxl->cxlds);
 
+	cxl->cxlmd = devm_cxl_add_memdev(&pci_dev->dev, cxl->cxlds);
+	if (IS_ERR(cxl->cxlmd)) {
+		pci_err(pci_dev, "CXL accel memdev creation failed");
+		rc = PTR_ERR(cxl->cxlmd);
+		goto err3;
+	}
+
 	efx->cxl = cxl;
 #endif
 
 	return 0;
 
 #if IS_ENABLED(CONFIG_CXL_BUS)
+err3:
+	cxl_release_resource(cxl->cxlds, CXL_RES_RAM);
 err2:
 	kfree(cxl->cxlds);
 err1:
-- 
2.17.1