On Mon, Jul 8, 2024 at 2:48 PM Cindy Lu <lulu@xxxxxxxxxx> wrote:
>
> Add the function to support setting the MAC address.
> For vdpa_sim_net, the driver will write the MAC address
> to the config space, and other devices can implement
> their own functions to support this.
>
> Signed-off-by: Cindy Lu <lulu@xxxxxxxxxx>
> ---
> drivers/vdpa/vdpa_sim/vdpa_sim_net.c | 19 ++++++++++++++++++-
> 1 file changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_net.c b/drivers/vdpa/vdpa_sim/vdpa_sim_net.c
> index cfe962911804..a472c3c43bfd 100644
> --- a/drivers/vdpa/vdpa_sim/vdpa_sim_net.c
> +++ b/drivers/vdpa/vdpa_sim/vdpa_sim_net.c
> @@ -414,6 +414,22 @@ static void vdpasim_net_get_config(struct vdpasim *vdpasim, void *config)
> net_config->status = cpu_to_vdpasim16(vdpasim, VIRTIO_NET_S_LINK_UP);
> }
>
> +static int vdpasim_net_set_attr(struct vdpa_mgmt_dev *mdev,
> + struct vdpa_device *dev,
> + const struct vdpa_dev_set_config *config)
> +{
> + struct vdpasim *vdpasim = container_of(dev, struct vdpasim, vdpa);
> +
> + struct virtio_net_config *vio_config = vdpasim->config;
> + if (config->mask & (1 << VDPA_ATTR_DEV_NET_CFG_MACADDR)) {
> + if (!is_zero_ether_addr(config->net.mac)) {
> + memcpy(vio_config->mac, config->net.mac, ETH_ALEN);
> + return 0;
> + }
> + }
> + return -EINVAL;
I think in the previous version, we agreed to have a lock to
synchronize the writing here?
Thanks
> +}
> +
> static void vdpasim_net_setup_config(struct vdpasim *vdpasim,
> const struct vdpa_dev_set_config *config)
> {
> @@ -510,7 +526,8 @@ static void vdpasim_net_dev_del(struct vdpa_mgmt_dev *mdev,
>
> static const struct vdpa_mgmtdev_ops vdpasim_net_mgmtdev_ops = {
> .dev_add = vdpasim_net_dev_add,
> - .dev_del = vdpasim_net_dev_del
> + .dev_del = vdpasim_net_dev_del,
> + .dev_set_attr = vdpasim_net_set_attr
> };
>
> static struct virtio_device_id id_table[] = {
> --
> 2.45.0
>
