[v2,0/1] virtio_net: vdpa: update MAC address when it is generated by virtio-net

Message

Laurent Vivier Jan. 23, 2023, noon UTC

When the MAC address is not provided by the vdpa device virtio_net
driver assigns a random one without notifying the device.
The consequence, in the case of mlx5_vdpa, is the internal routing
tables of the device are not updated and this can block the
communication between two namespaces.

To fix this problem, use virtnet_send_command(VIRTIO_NET_CTRL_MAC)
to set the address from virtnet_probe() when the MAC address is
not provided by the device.

v2:
  - remove vdpa_sim related fixes
  - check virtio_has_feature(vdev, VIRTIO_NET_F_MAC) rather than
    addr_assign_type

Laurent Vivier (1):
  virtio_net: notify MAC address change on device initialization

 drivers/net/virtio_net.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)