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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Andrew Rybchenko <arybchenko@solarflare.com>,
	Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, Chas Williams <chas3@att.com>,
	Hemant Agrawal <hemant.agrawal@nxp.com>,
	Shreyansh Jain <shreyansh.jain@nxp.com>,
	Wenzhuo Lu <wenzhuo.lu@intel.com>,
	Matan Azrad <matan@mellanox.com>,
	Shahaf Shuler <shahafs@mellanox.com>,
	Rasesh Mody <rmody@marvell.com>,
	Shahed Shaikh <shshaikh@marvell.com>,
	Tomasz Duszynski <tdu@semihalf.com>,
	Liron Himi <lironh@marvell.com>,
	Alan Winkowski <walan@marvell.com>,
	Jasvinder Singh <jasvinder.singh@intel.com>,
	Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Subject: Re: [dpdk-dev] ethdev flow director/filtering/steering API
Date: Fri, 12 Apr 2019 18:57:19 +0100	[thread overview]
Message-ID: <75db6e78-275e-80fb-9a57-305344a03b38@intel.com> (raw)
In-Reply-To: <366feb0e-cb95-5520-7daf-665818085d8c@solarflare.com>

On 4/11/2019 9:43 AM, Andrew Rybchenko wrote:
> On 4/11/19 10:49 AM, Thomas Monjalon wrote:
>> About the features called flow director, filtering or flow steering,
>> we have some overlap in our API that we should clean.
>> It is especially important when considering to freeze the API for stability.
>>
>> Please read this deprecation notice from December 2016:
>>
>> * ethdev: the legacy filter API, including
>>   ``rte_eth_dev_filter_supported()``, ``rte_eth_dev_filter_ctrl()`` as well
>>   as filter types MACVLAN, ETHERTYPE, FLEXIBLE, SYN, NTUPLE, TUNNEL, FDIR,
>>   HASH and L2_TUNNEL, is superseded by the generic flow API (rte_flow) in
>>   PMDs that implement the latter.
>>   Target release for removal of the legacy API will be defined once most
>>   PMDs have switched to rte_flow.
>>
>> We must mark the eth_dev_filter API as deprecated and decide about
>> a date to remove it.
>>
>> Which PMD is implementing this API and not rte_flow?
> 
> In accordance with feature matrix is it i40e_vec, ixgbe_vec and qede, but
> I think it is just a mistake in documentation.
> 
> Flow API support tick is missing for many PMDs which actually implement
> (as far as I can see): bonding, dppa2, e100, mlx4, qede, mvpp2, softnic.
> I've added maintainers to CC.

I think having both "Flow control" and "Flow API" is confusing, it looks to me
"Flow control" is name of the feature, "Flow API" is implementation detail and
other implementation detail is "Flow director"

>From the consumers point of view, to they need to know if the flow control
implemented using "Flow API"? This information looks like more driver internal.

Keeping only "Flow control" in feature list, and remove "Flow API" & "Flow
director", and set "Flow control" as support both with implementations makes
sense to me. What do you think?

> 
>> If there are still some, deadlines should help them to be converted :)
>> If some help is needed, please ask.
>>
>> Anyway, after more than 2 years of notice, I think it is fair to mark
>> the legacy API as deprecated in 19.05 release.
> 
> I agree. I think it is a good idea.
> 
> Andrew.

WARNING: multiple messages have this Message-ID
From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Andrew Rybchenko <arybchenko@solarflare.com>,
	Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, Chas Williams <chas3@att.com>,
	Hemant Agrawal <hemant.agrawal@nxp.com>,
	Shreyansh Jain <shreyansh.jain@nxp.com>,
	Wenzhuo Lu <wenzhuo.lu@intel.com>,
	Matan Azrad <matan@mellanox.com>,
	Shahaf Shuler <shahafs@mellanox.com>,
	Rasesh Mody <rmody@marvell.com>,
	Shahed Shaikh <shshaikh@marvell.com>,
	Tomasz Duszynski <tdu@semihalf.com>,
	Liron Himi <lironh@marvell.com>,
	Alan Winkowski <walan@marvell.com>,
	Jasvinder Singh <jasvinder.singh@intel.com>,
	Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Subject: Re: [dpdk-dev] ethdev flow director/filtering/steering API
Date: Fri, 12 Apr 2019 18:57:19 +0100	[thread overview]
Message-ID: <75db6e78-275e-80fb-9a57-305344a03b38@intel.com> (raw)
Message-ID: <20190412175719.pNDuj3Ak6beXO25ZFK66NH1GRsUdti8_4lgoo6-a5SQ@z> (raw)
In-Reply-To: <366feb0e-cb95-5520-7daf-665818085d8c@solarflare.com>

On 4/11/2019 9:43 AM, Andrew Rybchenko wrote:
> On 4/11/19 10:49 AM, Thomas Monjalon wrote:
>> About the features called flow director, filtering or flow steering,
>> we have some overlap in our API that we should clean.
>> It is especially important when considering to freeze the API for stability.
>>
>> Please read this deprecation notice from December 2016:
>>
>> * ethdev: the legacy filter API, including
>>   ``rte_eth_dev_filter_supported()``, ``rte_eth_dev_filter_ctrl()`` as well
>>   as filter types MACVLAN, ETHERTYPE, FLEXIBLE, SYN, NTUPLE, TUNNEL, FDIR,
>>   HASH and L2_TUNNEL, is superseded by the generic flow API (rte_flow) in
>>   PMDs that implement the latter.
>>   Target release for removal of the legacy API will be defined once most
>>   PMDs have switched to rte_flow.
>>
>> We must mark the eth_dev_filter API as deprecated and decide about
>> a date to remove it.
>>
>> Which PMD is implementing this API and not rte_flow?
> 
> In accordance with feature matrix is it i40e_vec, ixgbe_vec and qede, but
> I think it is just a mistake in documentation.
> 
> Flow API support tick is missing for many PMDs which actually implement
> (as far as I can see): bonding, dppa2, e100, mlx4, qede, mvpp2, softnic.
> I've added maintainers to CC.

I think having both "Flow control" and "Flow API" is confusing, it looks to me
"Flow control" is name of the feature, "Flow API" is implementation detail and
other implementation detail is "Flow director"

From the consumers point of view, to they need to know if the flow control
implemented using "Flow API"? This information looks like more driver internal.

Keeping only "Flow control" in feature list, and remove "Flow API" & "Flow
director", and set "Flow control" as support both with implementations makes
sense to me. What do you think?

> 
>> If there are still some, deadlines should help them to be converted :)
>> If some help is needed, please ask.
>>
>> Anyway, after more than 2 years of notice, I think it is fair to mark
>> the legacy API as deprecated in 19.05 release.
> 
> I agree. I think it is a good idea.
> 
> Andrew.


  parent reply	other threads:[~2019-04-12 17:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-11  7:49 Thomas Monjalon
2019-04-11  7:49 ` Thomas Monjalon
2019-04-11  8:43 ` Andrew Rybchenko
2019-04-11  8:43   ` Andrew Rybchenko
2019-04-12 17:57   ` Ferruh Yigit [this message]
2019-04-12 17:57     ` Ferruh Yigit
2019-04-16  9:33     ` Andrew Rybchenko
2019-04-16  9:33       ` Andrew Rybchenko
2019-04-16  9:51       ` Ferruh Yigit
2019-04-16  9:51         ` Ferruh Yigit
2019-04-16 10:10         ` Thomas Monjalon
2019-04-16 10:10           ` Thomas Monjalon

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