[dpdk-dev] vhost user MTU and promisc mode

Tan, Jianfeng jianfeng.tan at intel.com
Tue Feb 7 17:27:16 CET 2017



> -----Original Message-----
> From: Maxime Coquelin [mailto:maxime.coquelin at redhat.com]
> Sent: Monday, February 6, 2017 6:20 PM
> To: Tan, Jianfeng
> Cc: mst at redhat.com; Liu, Yuanhan; dev at 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

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


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