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(+)
--
2.39.0
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