Subject: Re: [virtio-dev] Re: [PATCH v9] virtio-net: add Max MTU configuration field
"Michael S. Tsirkin" <firstname.lastname@example.org> 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 <email@example.com> >> Cc: Victor Kaplansky <firstname.lastname@example.org> >> Acked-by: Michael S. Tsirkin <email@example.com> >> Acked-by: Maxime Coquelin <firstname.lastname@example.org> > > One technicality - please Cc email@example.com > on anything that affects the drivers, also since that is archived more > widely. Will do, thanks.