linux-kernel - [PATCH net-next v4 14/14] sfc: register the vDPA device

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Message-ID: <20230407081021.30952-15-gautam.dawar@amd.com>
Date:   Fri, 7 Apr 2023 13:40:15 +0530
From:   Gautam Dawar <gautam.dawar@....com>
To:     <linux-net-drivers@....com>, <jasowang@...hat.com>,
        Edward Cree <ecree.xilinx@...il.com>,
        Martin Habets <habetsm.xilinx@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        "Jakub Kicinski" <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Richard Cochran <richardcochran@...il.com>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     <eperezma@...hat.com>, <harpreet.anand@....com>,
        <tanuj.kamde@....com>, <koushik.dutta@....com>,
        Gautam Dawar <gautam.dawar@....com>
Subject: [PATCH net-next v4 14/14] sfc: register the vDPA device

Register the vDPA device which results in adding the device
to the vDPA bus which will be probed by either of the vDPA
bus drivers: virtio_vdpa or vhost_vdpa.

Signed-off-by: Gautam Dawar <gautam.dawar@....com>
---
 drivers/net/ethernet/sfc/ef100_vdpa.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/sfc/ef100_vdpa.c b/drivers/net/ethernet/sfc/ef100_vdpa.c
index 1aa7dec6c8b3..be3f5cddfb60 100644
--- a/drivers/net/ethernet/sfc/ef100_vdpa.c
+++ b/drivers/net/ethernet/sfc/ef100_vdpa.c
@@ -242,8 +242,7 @@ static void ef100_vdpa_delete(struct efx_nic *efx)
 			}
 		}
 
-		/* replace with _vdpa_unregister_device later */
-		put_device(&vdpa_dev->dev);
+		_vdpa_unregister_device(&efx->vdpa_nic->vdpa_dev);
 	}
 	efx_mcdi_free_vis(efx);
 }
@@ -393,7 +392,14 @@ static struct ef100_vdpa_nic *ef100_vdpa_create(struct efx_nic *efx,
 		vdpa_nic->mac_configured = true;
 	}
 
-	/* _vdpa_register_device when its ready */
+	rc = _vdpa_register_device(&vdpa_nic->vdpa_dev,
+				   (allocated_vis - 1) * 2);
+	if (rc) {
+		pci_err(efx->pci_dev,
+			"vDPA device registration failed, vf: %u, rc: %d\n",
+			nic_data->vf_index, rc);
+		goto err_put_device;
+	}
 
 	return vdpa_nic;
 
-- 
2.30.1