diff mbox series

[v3,05/10] vdpa/sfc: add support to get VFIO device fd

Message ID 20211029144645.30295-6-vsrivast@xilinx.com (mailing list archive)
State Superseded, archived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 Oct. 29, 2021, 2:46 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>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 drivers/vdpa/sfc/sfc_vdpa_ops.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

Comments

Chenbo Xia Nov. 2, 2021, 7:10 a.m. UTC | #1 
> -----Original Message-----
> From: Vijay Srivastava <vijay.srivastava@xilinx.com>
> Sent: Friday, October 29, 2021 10:47 PM
> To: dev@dpdk.org
> Cc: maxime.coquelin@redhat.com; Xia, Chenbo <chenbo.xia@intel.com>;
> andrew.rybchenko@oktetlabs.ru; Vijay Kumar Srivastava <vsrivast@xilinx.com>
> Subject: [PATCH v3 05/10] vdpa/sfc: add support to get VFIO device fd
> 
> 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>
> Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
>  drivers/vdpa/sfc/sfc_vdpa_ops.c | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> 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 *
> --
> 1.8.3.1

Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
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 *