On Mon, Jul 22, 2024 at 9:06 AM Cindy Lu <lulu@xxxxxxxxxx> wrote:
>
> Add the function to support setting the MAC address.
> For vdpa/mlx5, the function will use mlx5_mpfs_add_mac
> to set the mac address
>
> Tested in ConnectX-6 Dx device
>
> Signed-off-by: Cindy Lu <lulu@xxxxxxxxxx>
> ---
> drivers/vdpa/mlx5/net/mlx5_vnet.c | 25 +++++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> index ecfc16151d61..415b527a9c72 100644
> --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
> +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> @@ -3785,10 +3785,35 @@ static void mlx5_vdpa_dev_del(struct vdpa_mgmt_dev *v_mdev, struct vdpa_device *
> destroy_workqueue(wq);
> mgtdev->ndev = NULL;
> }
> +static int mlx5_vdpa_set_attr(struct vdpa_mgmt_dev *v_mdev,
> + struct vdpa_device *dev,
> + const struct vdpa_dev_set_config *add_config)
> +{
> + struct mlx5_vdpa_dev *mvdev;
> + struct mlx5_vdpa_net *ndev;
> + struct mlx5_core_dev *mdev;
> + struct virtio_net_config *config;
> + struct mlx5_core_dev *pfmdev;
> + int err = -EOPNOTSUPP;
> +
> + mvdev = to_mvdev(dev);
> + ndev = to_mlx5_vdpa_ndev(mvdev);
> + mdev = mvdev->mdev;
> + config = &ndev->config;
> +
> + if (add_config->mask & (1 << VDPA_ATTR_DEV_NET_CFG_MACADDR)) {
> + pfmdev = pci_get_drvdata(pci_physfn(mdev->pdev));
> + err = mlx5_mpfs_add_mac(pfmdev, config->mac);
> + if (!err)
> + memcpy(config->mac, add_config->net.mac, ETH_ALEN);
> + }
> + return err;
Similar to net simulator, how could be serialize the modification to
mac address:
1) from vdpa tool
2) via control virtqueue
Thanks
> +}
>
> static const struct vdpa_mgmtdev_ops mdev_ops = {
> .dev_add = mlx5_vdpa_dev_add,
> .dev_del = mlx5_vdpa_dev_del,
> + .dev_set_attr = mlx5_vdpa_set_attr,
> };
>
> static struct virtio_device_id id_table[] = {
> --
> 2.45.0
>
