DPDK patches and discussions
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From: Vincent JARDIN <vincent.jardin@6wind.com>
To: "Chen, Jing D" <jing.d.chen@intel.com>
Cc: Thomas Monjalon <thomas.monjalon@6wind.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"Yigit, Ferruh" <ferruh.yigit@intel.com>,
	"Wu, Jingjing" <jingjing.wu@intel.com>,
	"Zhang, Helin" <helin.zhang@intel.com>
Subject: Re: [dpdk-dev] [PATCH v5 00/29] Support VFD and DPDK PF + kernel VF on i40e
Date: Thu, 22 Dec 2016 14:46:11 +0100	[thread overview]
Message-ID: <7b981a32-9837-5e5c-dc0d-3c4781341aeb@6wind.com> (raw)
In-Reply-To: <4341B239C0EFF9468EE453F9E9F4604D3C5C6B22@shsmsx102.ccr.corp.intel.com>

Le 22/12/2016 à 09:10, Chen, Jing D a écrit :
> In the meanwhile, we have some test models ongoing to validate combination of Linux and
> DPDK drivers for VF and PF. We'll fully support below 4 cases going forward.
> 1. DPDK PF + DPDK VF
> 2. DPDK PF + Linux VF

+ DPDK PF + FreeBSD VF
+ DPDK PF + Windows VF
+ DPDK PF + OS xyz VF

> 3. Linux PF + DPDK VF
> 4. Linux PF + Linux VF (it's not our scope)

So, you confirm the issue: having DPDK becoming a PF, even if SRIOV 
protocol includes version-ing, it doubles the combinatory cases.

>
> After applied this patch, i've done below test without observing compatibility issue.
> 1. DPDK PF + DPDK VF (middle of 16.11 and 17.02 code base). PF to support API 1.0 while VF
>     to support API 1.1/1.0	
> 2. DPDK PF + Linux VF 1.5.14. PF to support 1.0, while Linux to support 1.1/1.0
>
> Linux PF + DPDK VF has been tested with 1.0 API long time ago. There is some test activities
> ongoing.
>
> Finally, please give strong reasons to support your NAC.

I feel bad because I do recognize the strong and hard work that you have 
done on this PF development, but I feel we need first to assess if DPDK 
should become a PF or not. I know ixgbe did open the path and that they 
are some historical DPDK PF supports in Intel NICs, but before we 
generalize it, we have to make sure we are not turning this DataPlane 
development Kit into a ControlPlane Driver Kit that we are scared to 
upstream into Linux kernel. Even if "DPDK is not Linux", it does not 
mean that Linux should be ignored. In case of DPDK on other OS, same, 
their PF could be extended too.

So currently, yes, I do keep a nack't

Since DPDK PF features can be into Linux PF features too and since Linux 
(and other hypervisors) has already some tools to manage PF (see 
iproute2, etc.), why should we have an other management path with DPDK? 
DPDK is aimed to be a Dataplane Development kit, not a 
management/control plane driver kit.

Assuming you want to use DPDK PF for dataplane feature, that could be OK 
then, using:
   - configure one VF on the hypervisor from Linux's PF, let's name if 
VF_forPFtraffic, see http://dpdk.org/doc/guides/howto/flow_bifurcation.html
   - have no (or few IO)s to the PF's queue
   - assign the traffic to all VF_forPFtraffic's queues of the hypervisor,
   - run DPDK into the hypervisor's VF_forPFtraffic

Doing so, we get the same benefit of running DPDK over PF or running 
DPDK over VF_forPFtraffic, don't we? It is a benefit of:
   http://dpdk.org/doc/guides/howto/flow_bifurcation.html

Thank you,
   Vincent

  reply	other threads:[~2016-12-22 13:46 UTC|newest]

Thread overview: 125+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-15 21:04 [dpdk-dev] [PATCH v3 " Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 01/29] net/i40e: support link status notification Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 02/29] net/i40e: add callback to user on VF to PF mbox msg Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 03/29] net/i40e: set VF MAC anti-spoofing from PF Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 04/29] net/i40e: set VF VLAN " Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 05/29] net/i40e: set Tx loopback " Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 06/29] net/i40e: set VF unicast promisc mode " Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 07/29] net/i40e: set VF multicast " Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 08/29] net/i40e: enable VF MTU change Qi Zhang
2016-12-15 21:04 ` [dpdk-dev] [PATCH v3 09/29] net/i40e: fix VF reset flow Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 10/29] net/i40e: set VF MAC from PF support Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 11/29] net/i40e: set VF MAC from VF support Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 12/29] net/i40e: fix VF MAC address assignment Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 13/29] net/i40e: add VF VLAN strip func Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 14/29] net/i40e: add set VF VLAN insert function Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 15/29] net/i40e: set VF broadcast mode from PF Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 16/29] net/i40e: set VF VLAN tag " Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 17/29] net/i40e: set VF VLAN filter " Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 18/29] app/testpmd: use VFD APIs on i40e Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 19/29] app/testpmd: use unicast promiscuous mode " Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 20/29] app/testpmd: use multicast " Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 21/29] app/testpmd: add command to test VF broadcast " Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 22/29] app/testpmd: add command to test VF VLAN tag " Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 23/29] app/testpmd: handle i40e in VF VLAN filter command Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 24/29] net/i40e: change version number to support Linux VF Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 25/29] net/i40e: return correct VSI id Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 26/29] net/i40e: parse more VF parameter and configure Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 27/29] net/i40e: support Linux VF to configure IRQ link list Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 28/29] net/i40e: enhance in sanity check of MAC Qi Zhang
2016-12-15 21:05 ` [dpdk-dev] [PATCH v3 29/29] net/i40e: set/clear VF stats from PF Qi Zhang
2016-12-16 14:28 ` [dpdk-dev] [PATCH v3 00/29] Support VFD and DPDK PF + kernel VF on i40e Ferruh Yigit
2016-12-16 14:38 ` [dpdk-dev] [PATCH v4 " Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 01/29] net/i40e: support link status notification Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 02/29] net/i40e: add callback to user on VF to PF mbox msg Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 03/29] net/i40e: set VF MAC anti-spoofing from PF Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 04/29] net/i40e: set VF VLAN " Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 05/29] net/i40e: set Tx loopback " Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 06/29] net/i40e: set VF unicast promisc mode " Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 07/29] net/i40e: set VF multicast " Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 08/29] net/i40e: enable VF MTU change Ferruh Yigit
2016-12-16 14:38   ` [dpdk-dev] [PATCH v4 09/29] net/i40e: fix VF reset flow Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 10/29] net/i40e: set VF MAC from PF support Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 11/29] net/i40e: set VF MAC from VF support Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 12/29] net/i40e: fix VF MAC address assignment Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 13/29] net/i40e: add VF VLAN strip func Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 14/29] net/i40e: add set VF VLAN insert function Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 15/29] net/i40e: set VF broadcast mode from PF Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 16/29] net/i40e: set VF VLAN tag " Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 17/29] net/i40e: set VF VLAN filter " Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 18/29] app/testpmd: use VFD APIs on i40e Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 19/29] app/testpmd: use unicast promiscuous mode " Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 20/29] app/testpmd: use multicast " Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 21/29] app/testpmd: add command to test VF broadcast " Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 22/29] app/testpmd: add command to test VF VLAN tag " Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 23/29] app/testpmd: handle i40e in VF VLAN filter command Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 24/29] net/i40e: change version number to support Linux VF Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 25/29] net/i40e: return correct VSI id Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 26/29] net/i40e: parse more VF parameter and configure Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 27/29] net/i40e: support Linux VF to configure IRQ link list Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 28/29] net/i40e: enhance in sanity check of MAC Ferruh Yigit
2016-12-16 14:39   ` [dpdk-dev] [PATCH v4 29/29] net/i40e: set/clear VF stats from PF Ferruh Yigit
2016-12-16 14:45   ` [dpdk-dev] [PATCH v4 00/29] Support VFD and DPDK PF + kernel VF on i40e Vincent Jardin
2016-12-16 19:02   ` [dpdk-dev] [PATCH v5 " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 01/29] net/i40e: support link status notification Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 02/29] net/i40e: add callback to user on VF to PF mbox msg Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 03/29] net/i40e: set VF MAC anti-spoofing from PF Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 04/29] net/i40e: set VF VLAN " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 05/29] net/i40e: set Tx loopback " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 06/29] net/i40e: set VF unicast promisc mode " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 07/29] net/i40e: set VF multicast " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 08/29] net/i40e: enable VF MTU change Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 09/29] net/i40e: fix VF reset flow Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 10/29] net/i40e: set VF MAC from PF support Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 11/29] net/i40e: set VF MAC from VF support Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 12/29] net/i40e: fix VF MAC address assignment Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 13/29] net/i40e: add VF VLAN strip func Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 14/29] net/i40e: add set VF VLAN insert function Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 15/29] net/i40e: set VF broadcast mode from PF Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 16/29] net/i40e: set VF VLAN tag " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 17/29] net/i40e: set VF VLAN filter " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 18/29] app/testpmd: use VFD APIs on i40e Ferruh Yigit
2016-12-16 20:30       ` Vincent JARDIN
2016-12-19 11:03         ` Ferruh Yigit
2016-12-20 15:19           ` Vincent JARDIN
2016-12-19 17:09       ` Ferruh Yigit
2016-12-20  1:05         ` Lu, Wenzhuo
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 19/29] app/testpmd: use unicast promiscuous mode " Ferruh Yigit
2016-12-16 20:28       ` Vincent JARDIN
2016-12-19 11:05         ` Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 20/29] app/testpmd: use multicast " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 21/29] app/testpmd: add command to test VF broadcast " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 22/29] app/testpmd: add command to test VF VLAN tag " Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 23/29] app/testpmd: handle i40e in VF VLAN filter command Ferruh Yigit
2016-12-16 20:31       ` Vincent JARDIN
2016-12-19 11:13         ` Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 24/29] net/i40e: change version number to support Linux VF Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 25/29] net/i40e: return correct VSI id Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 26/29] net/i40e: parse more VF parameter and configure Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 27/29] net/i40e: support Linux VF to configure IRQ link list Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 28/29] net/i40e: enhance in sanity check of MAC Ferruh Yigit
2016-12-16 19:02     ` [dpdk-dev] [PATCH v5 29/29] net/i40e: set/clear VF stats from PF Ferruh Yigit
2016-12-20 13:24       ` Ferruh Yigit
2016-12-20 13:40         ` Iremonger, Bernard
2016-12-21  0:56           ` Lu, Wenzhuo
2016-12-22 16:38             ` Iremonger, Bernard
2016-12-16 20:36     ` [dpdk-dev] [PATCH v5 00/29] Support VFD and DPDK PF + kernel VF on i40e Vincent JARDIN
2016-12-19  9:01       ` Chen, Jing D
2016-12-19 13:20         ` Thomas Monjalon
2016-12-19 13:39           ` Chen, Jing D
2016-12-19 13:45             ` Vincent JARDIN
2016-12-20  4:48               ` Chen, Jing D
2016-12-20 15:18                 ` Vincent JARDIN
2016-12-20 15:31                   ` Ferruh Yigit
2016-12-21  0:50                     ` Lu, Wenzhuo
2016-12-22  8:10                   ` Chen, Jing D
2016-12-22 13:46                     ` Vincent JARDIN [this message]
2016-12-26 11:59                       ` Chen, Jing D
2017-01-04 21:09                         ` Scott Daniels
2017-01-10 13:29                           ` Vincent JARDIN
2017-01-12  3:47                             ` Chen, Jing D
2017-01-13 23:04                               ` John Fastabend
2017-01-13 23:49                                 ` JOSHI, KAUSTUBH  (KAUSTUBH)
2017-01-15 23:32                                   ` Vincent JARDIN
2017-01-16 11:42                                   ` Ferruh Yigit
2017-01-16  9:32                                 ` Thomas Monjalon

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