netdev - Re: [RFC v2 -next 0/2] virtio-net: Advised MTU feature

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Date:	Thu, 17 Mar 2016 17:24:40 -0400
From:	Aaron Conole <aconole@...hat.com>
To:	Pankaj Gupta <pagupta@...hat.com>
Cc:	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

Pankaj Gupta <pagupta@...hat.com> writes:

>> 
>> 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
>
> You mean VIRTIO spec?

Yes, sorry.

>> 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.
>> 
>> 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(+)
>> 
>> --
>> 2.5.0
>> 
>>