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Joachim WibergandTobias Waldekranz
f212f0cc16
The speed/duplex of a virtio interface is not eenforced in any way. The driver initializes them to unknown/unkown: https://github.com/torvalds/linux/blob/dccbe2047a5b0859de24bf463dae9eeea8e01c1e/drivers/net/virtio_net.c#L5375-L5381 It is however possible to set them since there are kernel subsystems that rely on them, e.g., miimon in the bond driver, which in turn is required for use with the 802.3ad (lacp) mode. If we do not initialize speed/duplex the miimon will complain in the log on virtual test systems every second: Dec 13 22:34:08 laggy kernel: lag0: (slave e1): failed to get link speed/duplex Signed-off-by: Joachim Wiberg <troglobit@gmail.com>