[PATCH 2/2] vdpa_sim_net: Add the support of set mac address

Cindy Lu
2024-06-11T05:33:04Z

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@redhat.com>
---
drivers/vdpa/vdpa_sim/vdpa_sim_net.c | 18 +++++++++++++++++-
1 file changed, 17 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..e961a08341c2 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim_net.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim_net.c
@@ -414,6 +414,21 @@ 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_mac(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)) {
+ memcpy(vio_config->mac, config->net.mac, ETH_ALEN);
+ return 0;
+ }
+ return -EINVAL;
+}
+
static void vdpasim_net_setup_config(struct vdpasim *vdpasim,
const struct vdpa_dev_set_config *config)
{
@@ -510,7 +525,8 @@ 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,
+ .set_mac = vdpasim_net_set_mac
};

static struct virtio_device_id id_table[] = {
--
2.45.0