On Tue, 2024-07-23 at 13:39 +0800, Cindy Lu 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 <[email protected]>
> ---
>  drivers/vdpa/mlx5/net/mlx5_vnet.c | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c 
> b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> index ecfc16151d61..7fce952d650f 100644
> --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
> +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
> @@ -3785,10 +3785,38 @@ 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 virtio_net_config *config;
> +     struct mlx5_core_dev *pfmdev;
> +     struct mlx5_vdpa_dev *mvdev;
> +     struct mlx5_vdpa_net *ndev;
> +     struct mlx5_core_dev *mdev;
> +     int err = -EINVAL;
> +
> +     mvdev = to_mvdev(dev);
> +     ndev = to_mlx5_vdpa_ndev(mvdev);
> +     mdev = mvdev->mdev;
> +     config = &ndev->config;
> +
> +     down_write(&ndev->reslock);
> +     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 (0 == err)
if (!err) would be nicer. Not a deal breaker though.

Reviewed-by: Dragos Tatulea <[email protected]>

> +                     memcpy(config->mac, add_config->net.mac, ETH_ALEN);
> +     }
> +
> +     up_write(&ndev->reslock);
> +     return err;
> +}
>  
>  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[] = {

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