"Michael S. Tsirkin" <> writes:
> On Tue, Sep 06, 2016 at 10:31:01AM -0400, Aaron Conole wrote:
>> It is helpful for a host to indicate it's MTU to be set on guest NICs
>> other than the assumed 1500 byte value. This helps in situations where
>> the host network is using Jumbo Frames, or aiding in PMTU discovery by
>> configuring a homogenous network. It is also helpful for sizing receive
>> buffers correctly.
>>
>> The change adds a new field to configuration area of network
>> devices. It will be used to pass a maximum MTU from the device to
>> the driver. This will be used by the driver as a maximum value for
>> packet sizes during transmission, without segmentation offloading.
>>
>> In addition, in order to support backward and forward compatibility,
>> we introduce a new feature bit called VIRTIO_NET_F_MTU.
>>
>> VIRTIO-152
>> Signed-off-by: Aaron Conole <>
>> Cc: Victor Kaplansky <>
>> Acked-by: Michael S. Tsirkin <>
>> Acked-by: Maxime Coquelin <>
>
> One technicality - please Cc
> on anything that affects the drivers, also since that is archived more
> widely.
Will do, thanks.
