Re: [dpdk-dev] [dpdk-announce] DPDK Features for Q1 2015

["Xie, Huawei" <huawei.xie@intel.com>]

Hi Tetsuya:
I am implementing vhost-user, and the functionality works now.
During this work, I have refactored vhost code a bit for better modularization,  basically
virtio part, control message part(vhost-user, vhost cuse) and data part. :).
Let us see your patch, if its modularization is further, I will generate the
vhost-user patch based on yours rather than mine, :).

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Tetsuya Mukawa
> Sent: Wednesday, October 22, 2014 8:17 PM
> To: O'driscoll, Tim
> Cc: dev@dpdk.org
> Subject: Re: [dpdk-dev] [dpdk-announce] DPDK Features for Q1 2015
> 
> Hi All,
> 
> (2014/10/22 22:48), O'driscoll, Tim wrote:
> > Single Virtio Driver: Merge existing Virtio drivers into a single implementation,
> incorporating the best features from each of the existing drivers.
> 
> It's nice plan. We should do it.
> In my understanding, the following drivers could be merged into a single
> virtio PMD since they consist of similar code for handling the virtio ring.
> 
> - librte_pmd_virtio
> - librte_pmd_xenvirt
> - librte_vhost (cuse)
> 
> librte_vhost is not a PMD, but we can easily write a librte_pmd_vhost
> based on librte_vhost.
> Before doing it, we need to consider vhost-user extension for librte_vhost.
> 
> BTW, I have a RFC patch for librte_vhost to handle vhost-user.
> It may be the first step to merge all virtio drivers.
> 
> My patch introduces an abstraction layer to hide differences between
> legacy cuse vhost and vhost-user from DPDK apps.
> Also in my patch, virtio negotiation and initialization code and virtio
> handling code is separated.
> So, legacy cuse vhost and vhost-user can share virtio handling code
> 
> Anyway, I will send a RFC patch soon as the first step of merging all
> virtio drivers.
> 
> Thanks,
> Tetsuya