Re: [PATCH v3 3/4] net/virtio-user: add support for server mode

["Yang, Zhiyong" <zhiyong.yang@intel.com>]

Hi Jianfeng,

> -----Original Message-----
> From: Tan, Jianfeng
> Sent: Wednesday, March 28, 2018 11:15 PM
> To: Yang, Zhiyong <zhiyong.yang@intel.com>; dev@dpdk.org
> Cc: Wang, Zhihong <zhihong.wang@intel.com>;
> maxime.coquelin@redhat.com; thomas@monjalon.net; Wang, Dong1
> <dong1.wang@intel.com>; Bie, Tiwei <tiwei.bie@intel.com>
> Subject: Re: [PATCH v3 3/4] net/virtio-user: add support for server mode
> 
> Hi Zhiyong,
> 
> Triggered by the community discussion of thread creation in a library
> (http://dpdk.org/dev/patchwork/patch/36579/), we can think about if
> possible to avoid the pthread creation here.
> 
> Just a quick think, it could be feasible. The key idea is to properly set up the
> LSC interrupt for a server mode virtio-user.
> - If the virtio-user device is just probed, we can setup LSC interrupt by
> registering the listen fd to interrupt thread. Whenever a vhost-user
> connection is coming, we will get a chance to read status, at that time, we
> could accept the connection, and report the status is up.
> - And after the connection is setup, we setup LSC interrupt by registering the
> connection fd to interrupt thread; if the connection is broken, we also get a
> change to read status, in which we can switch to the above setting.
> 
> How do you think?
> 

Very nice idea,  which looks reasonable. Let me try it. 

Thanks
Zhiyong

> Thanks,
> Jianfeng
>