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

Message ID 20230123120022.2364889-1-lvivier@redhat.com
Headers
Series 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(+)