diff mbox series

[05/10] vdpa/sfc: add support to get VFIO device fd

Message ID 20210706164418.32615-6-vsrivast@xilinx.com (mailing list archive)
State Changes Requested, archived
Delegated to: Maxime Coquelin
Headers
Series vdpa/sfc: introduce Xilinx vDPA driver |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Vijay Srivastava July 6, 2021, 4:44 p.m. UTC 
  From: Vijay Kumar Srivastava <vsrivast@xilinx.com>

Implement vDPA ops get_vfio_device_fd to get the VFIO device fd.

Signed-off-by: Vijay Kumar Srivastava <vsrivast@xilinx.com>
---
 drivers/vdpa/sfc/sfc_vdpa_ops.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

Comments

Maxime Coquelin Aug. 30, 2021, 9:39 a.m. UTC | #1 
On 7/6/21 6:44 PM, Vijay Srivastava wrote:
> From: Vijay Kumar Srivastava <vsrivast@xilinx.com>
> 
> Implement vDPA ops get_vfio_device_fd to get the VFIO device fd.
> 
> Signed-off-by: Vijay Kumar Srivastava <vsrivast@xilinx.com>
> ---
>  drivers/vdpa/sfc/sfc_vdpa_ops.c | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 

Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime
diff mbox series

Patch

diff --git a/drivers/vdpa/sfc/sfc_vdpa_ops.c b/drivers/vdpa/sfc/sfc_vdpa_ops.c
index 6c702e1..5253adb 100644
--- a/drivers/vdpa/sfc/sfc_vdpa_ops.c
+++ b/drivers/vdpa/sfc/sfc_vdpa_ops.c
@@ -145,6 +145,29 @@ 
 	return -1;
 }
 
+static int
+sfc_vdpa_get_vfio_device_fd(int vid)
+{
+	struct rte_vdpa_device *vdpa_dev;
+	struct sfc_vdpa_ops_data *ops_data;
+	int vfio_dev_fd;
+	void *dev;
+
+	vdpa_dev = rte_vhost_get_vdpa_device(vid);
+
+	ops_data = sfc_vdpa_get_data_by_dev(vdpa_dev);
+	if (ops_data == NULL)
+		return -1;
+
+	dev = ops_data->dev_handle;
+	vfio_dev_fd = sfc_vdpa_adapter_by_dev_handle(dev)->vfio_dev_fd;
+
+	sfc_vdpa_info(dev, "vDPA ops get_vfio_device_fd :: vfio fd : %d",
+		      vfio_dev_fd);
+
+	return vfio_dev_fd;
+}
+
 static struct rte_vdpa_dev_ops sfc_vdpa_ops = {
 	.get_queue_num = sfc_vdpa_get_queue_num,
 	.get_features = sfc_vdpa_get_features,
@@ -153,6 +176,7 @@ 
 	.dev_close = sfc_vdpa_dev_close,
 	.set_vring_state = sfc_vdpa_set_vring_state,
 	.set_features = sfc_vdpa_set_features,
+	.get_vfio_device_fd = sfc_vdpa_get_vfio_device_fd,
 };
 
 struct sfc_vdpa_ops_data *