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From: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>
To: Vincent JARDIN <vincent.jardin@6wind.com>, "Yigit, Ferruh"
 <ferruh.yigit@intel.com>, "Zhang, Helin" <helin.zhang@intel.com>,
 "dev@dpdk.org" <dev@dpdk.org>
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 <daniels@research.att.com>, "'ZELEZNIAK, ALEX'" <az5157@att.com>, "Chen,
 Jing D" <jing.d.chen@intel.com>
Thread-Topic: [dpdk-dev] [PATCH v8 00/25] Support VFD on i40e
Thread-Index: AQHSaxF4WHHhY20890iFxNKWG121aaExLWSAgAB1FwCAABNQgIABBx6AgAFulsA=
Date: Thu, 12 Jan 2017 03:21:13 +0000
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Subject: Re: [dpdk-dev] [PATCH v8 00/25] Support VFD on i40e
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Hi Vincent,

> -----Original Message-----
> From: Vincent JARDIN [mailto:vincent.jardin@6wind.com]
> Sent: Wednesday, January 11, 2017 9:14 PM
> To: Yigit, Ferruh; Zhang, Helin; Lu, Wenzhuo; dev@dpdk.org
> Cc: 'JOSHI, KAUSTUBH'; 'DANIELS, EDWARD'; 'ZELEZNIAK, ALEX'
> Subject: Re: [dpdk-dev] [PATCH v8 00/25] Support VFD on i40e
>=20
> Le 10/01/2017 =E0 22:32, Ferruh Yigit a =E9crit :
> > What do you think to continue high level DPDK PF discussion in mail
> > thread for other pathset? So that we can continue to work on this one.
>=20
> First, we need to assess or not if it makes sense to go toward Linux kern=
el or
> DPDK based PF. If Linux kernel is used, then DPDK does not need VFD relat=
ed
> modifications.
>=20
> VFD demonstrates that there are some needs of features, but it pushes the
> new path of a fork of PF drivers.
We're not sure if we want to change and maintain a totally new DPDK PF eith=
er.=20
So, we only change PMD code and not expose it to abstraction layer. It can =
only be used by some users who have the needs.=20
It's experimental and comes from the users' requirement. If it's good enoug=
h and accepted by other NICs, we can expose it.=20
If it's not good, it still can be a choice before Linux kernel provides.