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Date: Tue, 15 Mar 2016 14:34:36 -0700 From: Rick Jones <rick.jones2@....com> To: Aaron Conole <aconole@...hat.com>, netdev@...r.kernel.org, "Michael S. Tsirkin" <mst@...hat.com>, virtualization@...ts.linux-foundation.org, linux-kernel@...r.kernel.org Subject: Re: [RFC v2 -next 0/2] virtio-net: Advised MTU feature On 03/15/2016 02:04 PM, Aaron Conole wrote: > The following series adds the ability for a hypervisor to set an MTU on the > guest during feature negotiation phase. This is useful for VM orchestration > when, for instance, tunneling is involved and the MTU of the various systems > should be homogenous. > > The first patch adds the feature bit as described in the proposed VFIO spec > addition found at > https://lists.oasis-open.org/archives/virtio-dev/201603/msg00001.html > > The second patch adds a user of the bit, and a warning when the guest changes > the MTU from the hypervisor advised MTU. Future patches may add more thorough > error handling. How do you see this interacting with VMs getting MTU settings via DHCP? rick jones > > v2: > * Whitespace and code style cleanups from Sergei Shtylyov and Paolo Abeni > * Additional test before printing a warning > > Aaron Conole (2): > virtio: Start feature MTU support > virtio_net: Read the advised MTU > > drivers/net/virtio_net.c | 12 ++++++++++++ > include/uapi/linux/virtio_net.h | 3 +++ > 2 files changed, 15 insertions(+) >
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