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From: Thomas Monjalon <thomas@monjalon.net>
To: "Iremonger, Bernard" <bernard.iremonger@intel.com>
Cc: Ori Kam <orika@mellanox.com>, "dev@dpdk.org" <dev@dpdk.org>,
	"Xing, Beilei" <beilei.xing@intel.com>,
	"Zhang, Qi Z" <qi.z.zhang@intel.com>,
	"Doherty, Declan" <declan.doherty@intel.com>
Subject: Re: [dpdk-dev] [PATCH 0/8] add flow action map
Date: Thu, 04 Jun 2020 15:12:33 +0200
Message-ID: <2597084.FJZeo1sxHm@thomas> (raw)
In-Reply-To: <DM6PR11MB2537EC1F3F9F748F27732DE1EF890@DM6PR11MB2537.namprd11.prod.outlook.com>

(reordered replies to avoid top-post)

04/06/2020 13:21, Iremonger, Bernard:
> From: Ori Kam <orika@mellanox.com>
> > From: Bernard Iremonger <bernard.iremonger@intel.com>
> > >
> > > Add map action to rte_flow API to map a Packet Classification type
> > > (pctype) to a flowtype for the i40e PMD.
> > >
> > > This feature requires changes to be made to the rte_flow code in
> > > librte_ethdev, testpmd and the i40e PMD.
> > >
> > > Bernard Iremonger (8):
> > >   librte_ethdev: add new flow types and action
> > >   librte_ethdev: add map filter type
> > >   librte_ethdev: add map action
> > >   app/testpmd: parse map actions
> > >   net/i40e: add map filter
> > >   net/i40e: add map functions
> > >   net/i40e: parse map pattern and action
> > >   doc: release note
> > 
> > Can you please explain more what is the pctype, the flow type, What is the
> > general idea beyond this patch set?
> > How will the application uses it?
> > is it only for i40?
> 
> This patchset is intended to add support in the rte_flow API for the Dynamic Device Personalization (DDP) feature on the Intel i40e PMD by adding a map action.
> 
> https://software.intel.com/content/www/us/en/develop/articles/dynamic-device-personalization-for-intel-ethernet-700-series.html
> 
> pctype means Packet Classification type.
> flowtype is the index into the pctype table on the i40e.
> 
> The map action is intended to insert the specified pctype into the pctype table at index specified by the flowtype. 
>  
> At present the DDP feature uses the following commands in testpmd:
> /* map pctype 15 to flowtype 27 */
> # testpmd> port config 0 pctype mapping update 15 27
> # testpmd> show  port 0 pctype mapping
> pctype: 15  ->  flowtype: 27 
> 
> 
> In future the application will create the following rule:
> # testpmd> flow create 0 ingress pattern end actions map pctype 15 flowtype 27 / end
> # testpmd> show port 0 pctype mapping
>  pctype: 15  ->  flowtype: 27

This usage looks really Intel-specific.
If the application has to consider the Intel-specific ids,
then it is not generic.
Having some HW specific API makes no sense in the generic ethdev API.
Sorry I must say NACK.

Could this code be in drivers/net/i40e/rte_pmd_i40e.h ?



      reply	other threads:[~2020-06-04 13:12 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-03 14:20 Bernard Iremonger
2020-06-03 14:20 ` [dpdk-dev] [PATCH 1/8] librte_ethdev: add new flow types and action Bernard Iremonger
2020-06-03 14:20 ` [dpdk-dev] [PATCH 2/8] librte_ethdev: add map filter type Bernard Iremonger
2020-06-03 14:20 ` [dpdk-dev] [PATCH 3/8] librte_ethdev: add map action Bernard Iremonger
2020-06-03 14:20 ` [dpdk-dev] [PATCH 4/8] app/testpmd: parse map actions Bernard Iremonger
2020-06-03 14:20 ` [dpdk-dev] [PATCH 5/8] net/i40e: add map filter Bernard Iremonger
2020-06-03 14:20 ` [dpdk-dev] [PATCH 6/8] net/i40e: add map functions Bernard Iremonger
2020-06-03 14:20 ` [dpdk-dev] [PATCH 7/8] net/i40e: parse map pattern and action Bernard Iremonger
2020-06-03 14:20 ` [dpdk-dev] [PATCH 8/8] doc: release note Bernard Iremonger
2020-06-04  6:05 ` [dpdk-dev] [PATCH 0/8] add flow action map Ori Kam
2020-06-04 11:21   ` Iremonger, Bernard
2020-06-04 13:12     ` Thomas Monjalon [this message]

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