Re: [PATCH -next 1/2] virtio: Start feature MTU support

From: Aaron Conole
Date: Thu Jun 02 2016 - 13:10:13 EST


"Michael S. Tsirkin" <mst@xxxxxxxxxx> writes:

> On Thu, Jun 02, 2016 at 11:43:30AM -0400, Aaron Conole wrote:
>> This commit adds the feature bit and associated mtu device entry for the
>> virtio network device. Future commits will make use of these bits to
>> support negotiated MTU.
>
> why split it out? Pls squash with the next patch.

Okay. I thought the usual method was make a commit which introduces the
data structure changes, and then make a commit which hooks it up. I'll
squash this in the future.

>> Signed-off-by: Aaron Conole <aconole@xxxxxxxxxx>
>> ---
>> include/uapi/linux/virtio_net.h | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
>> index ec32293..751ff59 100644
>> --- a/include/uapi/linux/virtio_net.h
>> +++ b/include/uapi/linux/virtio_net.h
>> @@ -73,6 +73,8 @@ struct virtio_net_config {
>> * Legal values are between 1 and 0x8000
>> */
>> __u16 max_virtqueue_pairs;
>> + /* Default maximum transmit unit advice */
>> + __u16 mtu;
>> } __attribute__((packed));
>>
>> /*
>> --
>> 2.5.5