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From: "Zhang, Qi Z" <qi.z.zhang@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>, "Guo, Jia" <jia.guo@intel.com>
Cc: "Wu, Jingjing" <jingjing.wu@intel.com>,
	"Yang, Qiming" <qiming.yang@intel.com>,
	"Wang, Haiyue" <haiyue.wang@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"Yigit, Ferruh" <ferruh.yigit@intel.com>,
	"andrew.rybchenko@oktetlabs.ru" <andrew.rybchenko@oktetlabs.ru>,
	"orika@nvidia.com" <orika@nvidia.com>,
	"getelson@nvidia.com" <getelson@nvidia.com>,
	Dodji Seketeli <dodji@redhat.com>
Subject: Re: [dpdk-dev] [dpdk-dev v2 1/2] ethdev: add new tunnel type for ecpri
Date: Fri, 8 Jan 2021 01:41:17 +0000
Message-ID: <3979f8a247474b64a9c7f6fcd84b9c4f@intel.com> (raw)
In-Reply-To: <2049408.mdQoWhQ2pd@thomas>



> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Friday, January 8, 2021 12:59 AM
> To: Guo, Jia <jia.guo@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>
> Cc: Wu, Jingjing <jingjing.wu@intel.com>; Yang, Qiming
> <qiming.yang@intel.com>; Wang, Haiyue <haiyue.wang@intel.com>;
> dev@dpdk.org; Yigit, Ferruh <ferruh.yigit@intel.com>;
> andrew.rybchenko@oktetlabs.ru; orika@nvidia.com; getelson@nvidia.com;
> Dodji Seketeli <dodji@redhat.com>
> Subject: Re: [dpdk-dev] [dpdk-dev v2 1/2] ethdev: add new tunnel type for ecpri
> 
> 07/01/2021 16:24, Zhang, Qi Z:
> > From: Thomas Monjalon <thomas@monjalon.net>
> > > 07/01/2021 13:47, Zhang, Qi Z:
> > > > From: Thomas Monjalon <thomas@monjalon.net>
> > > > > 07/01/2021 10:32, Guo, Jia:
> > > > > > From: Thomas Monjalon <thomas@monjalon.net>
> > > > > > > 24/12/2020 07:59, Jeff Guo:
> > > > > > > > --- a/lib/librte_ethdev/rte_ethdev.h
> > > > > > > > +++ b/lib/librte_ethdev/rte_ethdev.h
> > > > > > > > @@ -1219,6 +1219,7 @@ enum rte_eth_tunnel_type {
> > > > > > > >  	RTE_TUNNEL_TYPE_IP_IN_GRE,
> > > > > > > >  	RTE_L2_TUNNEL_TYPE_E_TAG,
> > > > > > > >  	RTE_TUNNEL_TYPE_VXLAN_GPE,
> > > > > > > > +	RTE_TUNNEL_TYPE_ECPRI,
> > > > > > > >  	RTE_TUNNEL_TYPE_MAX,
> > > > > > > >  };
> > > > > > >
> > > > > > > We tried to remove all these legacy API in DPDK 20.11.
> > > > > > > Andrew decided to not remove this one because it is not yet
> > > > > > > completely replaced by rte_flow in all drivers.
> > > > > > > However, I am against continuing to update this API.
> > > > > > > The opposite work should be done: migrate to rte_flow.
> > > > > >
> > > > > > Agree but seems that the legacy api and driver legacy
> > > > > > implementation still keep in this release, and there is no a
> > > > > > general way to replace the legacy by rte_flow right now.
> > > > >
> > > > > I think rte_flow is a complete replacement with more features.
> > > >
> > > > Thomas, I may not agree with this.
> > > >
> > > > Actually the "enum rte_eth_tunnel_type" is used by
> > > > rte_eth_dev_udp_tunnel_port_add A packet with specific dst udp
> > > > port will be recognized as a specific tunnel packet type (e.g.
> > > > vxlan, vxlan-gpe,
> > > ecpri...) In Intel NIC, the API actually changes the configuration
> > > of the packet parser in HW but not add a filter rule and I guess all
> > > other devices may enable it in a similar way.
> > > > so naturally it should be a device (port) level configuration but
> > > > not a rte_flow
> > > rule for match, encap, decap...
> > >
> > > I don't understand how it helps to identify an UDP port if there is
> > > no rule for this tunnel.
> > > What is the usage?
> >
> > Yes, in general It is a rule, it matches a udp packet's dst port and the action is
> "now the packet is identified as vxlan packet" then all other rte_flow rules that
> match for a vlxan as pattern will take effect.  but somehow, I think they are
> not rules in the same domain, just like we have dedicate API for mac/vlan filter,
> we'd better have a dedicate API for this also. ( RFC for Vxlan explains why we
> need this. https://tools.ietf.org/html/rfc7348).
> >
> > "Destination Port: IANA has assigned the value 4789 for the VXLAN UDP
> > port, and this value SHOULD be used by default as the destination UDP
> > port.  Some early implementations of VXLAN have used other values for
> > the destination port.  To enable interoperability with these
> > implementations, the destination port SHOULD be configurable."
> 
> Yes the port number is free.
> But isn't it more natural to specify this port number as part of the rte_flow
> rule?

I think if we have a rte_flow action type that can be used to set a packet's tunnel type xxx, like below 
#flow create eth/ipv4/udp port is 4789/... action set_tunnel_type VxLAN / end
then we may replace it with rte_flow, but I'm not sure if it's necessary, please share if you have a better idea.

BTW, are we going to move all other filter like mac , VLAN filter/strip/insert into rte_flow finally?
if that's the plan, though I don't have much inputs for this right now, but I think we may not need to prevent new features be added based on current API if it does not introduce more complexity and not break anything.


> 
> 
> 


  reply	other threads:[~2021-01-08  1:41 UTC|newest]

Thread overview: 91+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-16  8:58 [dpdk-dev] [dpdk-dev 21.02 0/5] enable UDP ecpri configure in dcf Jeff Guo
2020-12-16  8:58 ` [dpdk-dev] [dpdk-dev 21.02 1/5] ethdev: add new tunnel type for ecpri Jeff Guo
2020-12-23  9:28   ` Zhang, Qi Z
2020-12-16  8:58 ` [dpdk-dev] [dpdk-dev 21.02 2/5] net/ice/base: add new UDP " Jeff Guo
2020-12-16  8:58 ` [dpdk-dev] [dpdk-dev 21.02 3/5] net/ice: add ecpri package type Jeff Guo
2020-12-16  8:58 ` [dpdk-dev] [dpdk-dev 21.02 4/5] net/ice: enable ecpri tunnel port configure in dcf Jeff Guo
2020-12-16  8:58 ` [dpdk-dev] [dpdk-dev 21.02 5/5] app/testpmd: add new UDP tunnel port for ecpri Jeff Guo
2020-12-24  6:59 ` [dpdk-dev] [dpdk-dev v2 0/2] " Jeff Guo
2020-12-24  6:59   ` [dpdk-dev] [dpdk-dev v2 1/2] ethdev: add new tunnel type " Jeff Guo
2021-01-06 22:12     ` Thomas Monjalon
2021-01-07  9:32       ` Guo, Jia
2021-01-07 10:09         ` Andrew Rybchenko
2021-01-07 10:11         ` Thomas Monjalon
2021-01-07 12:47           ` Zhang, Qi Z
2021-01-07 13:33             ` Thomas Monjalon
2021-01-07 13:45               ` David Marchand
2021-01-07 14:27                 ` Dodji Seketeli
2021-01-07 15:24               ` Zhang, Qi Z
2021-01-07 16:58                 ` Thomas Monjalon
2021-01-08  1:41                   ` Zhang, Qi Z [this message]
2021-01-08  8:57                     ` Ferruh Yigit
2021-01-08  9:29                       ` Andrew Rybchenko
2021-01-08 10:36                         ` Thomas Monjalon
2021-01-09  1:01                           ` Zhang, Qi Z
2021-01-10 10:46                             ` Ori Kam
2021-01-11  9:23                               ` Thomas Monjalon
2021-01-11 11:26                                 ` Zhang, Qi Z
2021-01-11 11:37                                   ` Thomas Monjalon
2021-01-11 14:02                                     ` Zhang, Qi Z
2021-01-11 14:53                                       ` Thomas Monjalon
2021-01-12  2:14                                         ` Zhang, Qi Z
2021-01-15 15:15                                           ` Thomas Monjalon
2021-01-08  9:22               ` Ferruh Yigit
2021-01-08 10:23                 ` Thomas Monjalon
2021-01-08 10:43                   ` Ferruh Yigit
2021-01-08 14:06                     ` Thomas Monjalon
2021-01-08 14:07                       ` Kinsella, Ray
2021-01-08 14:10                         ` Thomas Monjalon
2021-01-08 12:38                   ` Kinsella, Ray
2021-01-08 14:27                     ` Ferruh Yigit
2021-01-08 14:31                       ` Kinsella, Ray
2021-01-08 17:34                       ` Kinsella, Ray
2021-01-14 14:34     ` Ferruh Yigit
2021-01-15  2:51       ` Guo, Jia
2020-12-24  6:59   ` [dpdk-dev] [dpdk-dev v2 2/2] app/testpmd: add new UDP tunnel port " Jeff Guo
2021-01-14 14:33     ` Ferruh Yigit
2021-01-15  2:13       ` Guo, Jia
2020-12-24 13:40   ` [dpdk-dev] [dpdk-dev v2 0/2] " Zhang, Qi Z
2020-12-24  7:01 ` [dpdk-dev] [dpdk-dev v2 0/6] enable UDP ecpri configure in dcf Jeff Guo
2020-12-24  7:01   ` [dpdk-dev] [dpdk-dev v2 1/6] net/ice/base: add package PTYPE enable information Jeff Guo
2020-12-24  7:01   ` [dpdk-dev] [dpdk-dev v2 2/6] net/ice: refactor package type parsing Jeff Guo
2020-12-24  7:01   ` [dpdk-dev] [dpdk-dev v2 3/6] net/ice/base: add new UDP tunnel type for ecpri Jeff Guo
2020-12-24  7:01   ` [dpdk-dev] [dpdk-dev v2 4/6] net/ice: add PTYPE mapping " Jeff Guo
2020-12-24  7:01   ` [dpdk-dev] [dpdk-dev v2 5/6] net/iavf: " Jeff Guo
2020-12-24  7:01   ` [dpdk-dev] [dpdk-dev v2 6/6] net/ice: enable ecpri tunnel port configure in dcf Jeff Guo
2021-01-12  9:32 ` [dpdk-dev] [dpdk-dev v3 0/3] net/ice: refactor PTYPE parsing Jeff Guo
2021-01-12  9:32   ` [dpdk-dev] [dpdk-dev v3 1/3] net/ice/base: add package PTYPE enable information Jeff Guo
2021-01-12  9:32   ` [dpdk-dev] [dpdk-dev v3 2/3] net/ice/base: add PTYPE value Jeff Guo
2021-01-12  9:32   ` [dpdk-dev] [dpdk-dev v3 3/3] net/ice: refactor PTYPE parsing Jeff Guo
2021-01-13  5:31 ` [dpdk-dev] [dpdk-dev v4 0/2] " Jeff Guo
2021-01-13  5:31   ` [dpdk-dev] [dpdk-dev v4 1/2] net/ice/base: add PTYPE value Jeff Guo
2021-01-13  5:31   ` [dpdk-dev] [dpdk-dev v4 2/2] net/ice: refactor PTYPE parsing Jeff Guo
2021-01-13  6:07   ` [dpdk-dev] [dpdk-dev v4 0/2] " Zhang, Qi Z
2021-01-13 14:05 ` [dpdk-dev] [dpdk-dev v3 0/3] enable UDP ecpri configure in dcf Jeff Guo
2021-01-13 14:05   ` [dpdk-dev] [dpdk-dev v3 1/3] net/ice: add PTYPE mapping for ecpri Jeff Guo
2021-01-13 14:05   ` [dpdk-dev] [dpdk-dev v3 2/3] net/iavf: " Jeff Guo
2021-01-13 14:05   ` [dpdk-dev] [dpdk-dev v3 3/3] net/ice: enable ecpri tunnel port configure in dcf Jeff Guo
2021-01-14  4:18   ` [dpdk-dev] [dpdk-dev v3 0/3] enable UDP ecpri " Zhang, Qi Z
2021-01-18  9:28     ` Ferruh Yigit
2021-01-15  2:42 ` [dpdk-dev] [dpdk-dev v3 0/2] add new UDP tunnel port for ecpri Jeff Guo
2021-01-15  2:42   ` [dpdk-dev] [dpdk-dev v3 1/2] ethdev: add new tunnel type " Jeff Guo
2021-01-15  2:42   ` [dpdk-dev] [dpdk-dev v3 2/2] app/testpmd: add new UDP tunnel port " Jeff Guo
2021-01-15  4:35 ` [dpdk-dev] [dpdk-dev v4 0/2] add new UDP tunnel port configure for eCPRI Jeff Guo
2021-01-15  4:35   ` [dpdk-dev] [dpdk-dev v4 1/2] ethdev: add new tunnel type " Jeff Guo
2021-01-15  4:35   ` [dpdk-dev] [dpdk-dev v4 2/2] app/testpmd: add new UDP tunnel port " Jeff Guo
2021-01-15  5:15 ` [dpdk-dev] [dpdk-dev v5 0/2] add new UDP tunnel port configure " Jeff Guo
2021-01-15  5:15   ` [dpdk-dev] [dpdk-dev v5 1/2] ethdev: add new tunnel type " Jeff Guo
2021-01-15 12:23     ` Ferruh Yigit
2021-01-18  2:40       ` Guo, Jia
2021-01-15  5:15   ` [dpdk-dev] [dpdk-dev v5 2/2] app/testpmd: add new UDP tunnel port " Jeff Guo
2021-01-15 12:24     ` Ferruh Yigit
2021-01-15 12:28   ` [dpdk-dev] [dpdk-dev v5 0/2] add new UDP tunnel port configure " Ferruh Yigit
2021-01-19  3:59 ` [dpdk-dev] [dpdk-dev v4] net/ice: enable eCPRI tunnel port configure in dcf Jeff Guo
2021-01-19  4:15 ` Jeff Guo
2021-01-19  4:19 ` [dpdk-dev] [dpdk-dev v5] " Jeff Guo
2021-01-20 10:14   ` Zhang, Qi Z
2021-01-20 10:19     ` Thomas Monjalon
2021-01-20 10:23       ` Zhang, Qi Z
2021-01-20 10:30         ` Thomas Monjalon
2021-01-20 10:36           ` Zhang, Qi Z
2021-01-20 10:39             ` Thomas Monjalon

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