Re: vhost user MTU and promisc mode

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Feb 07, 2017 at 04:27:16PM +0000, Tan, Jianfeng wrote:
> 
> 
> > -----Original Message-----
> > From: Maxime Coquelin [mailto:maxime.coquelin@redhat.com]
> > Sent: Monday, February 6, 2017 6:20 PM
> > To: Tan, Jianfeng
> > Cc: mst@redhat.com; Liu, Yuanhan; dev@dpdk.org
> > Subject: Re: vhost user MTU and promisc mode
> > 
> > Hi Jianfeng,
> > 
> > On 02/06/2017 07:39 AM, Tan, Jianfeng wrote:
> > > Hi Maxime,
> > >
> > >
> > >
> > > Have seen that you submit a feature in QEMU, commit c5f048d8fb69
> > > ("vhost-user: Add MTU protocol feature and op").
> > >
> > >
> > >
> > > Appreciate your insights on:
> > >
> > > (1) Do you have plan to enable it in DPDK vhost user?
> > Yes, I plan to propose this for v17.05 release.
> > For vhost-user backend, the op is to notify the backend with the MTU
> > value set in QEMU, so that it can ensure packets sent won't be bigger.
> 
> Great to know that.
> 
> > 
> > >
> > > (2) How about another similar feature, promisc mode enable/disable?
> > This is ont something we have considered yet.
> > Are you willing to work on it?
> 
> Yes, we are considering it. But it should be firstly upsteamed into QEMU.
> 
> Thanks,
> Jianfeng

You also need to copy virtio tc list if you will suggest
interface changes. TC is responsible for documenting it.

> > 
> > Thanks,
> > Maxime
> > 
> > >
> > >
> > > Thanks,
> > >
> > > Jianfeng
> > >