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From: Nipun Gupta <nipun.gupta@nxp.com>
To: Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com>,
	Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
	"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
	Akhil Goyal <akhil.goyal@nxp.com>,
	Marko Kovacevic <marko.kovacevic@intel.com>,
	Ori Kam <orika@mellanox.com>,
	Radu Nicolau <radu.nicolau@intel.com>,
	Tomasz Kantecki <tomasz.kantecki@intel.com>,
	Sunil Kumar Kori <skori@marvell.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v4 08/10] examples/l2fwd-event: add eventdev main	loop
Date: Mon, 30 Sep 2019 05:38:32 +0000	[thread overview]
Message-ID: <VI1PR04MB4480E662F94F89A00A818C79E6820@VI1PR04MB4480.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <CY4PR1801MB18634ABAB751CA2285A43887DE810@CY4PR1801MB1863.namprd18.prod.outlook.com>



> -----Original Message-----
> From: Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com>
> Sent: Friday, September 27, 2019 8:05 PM
> To: Nipun Gupta <nipun.gupta@nxp.com>; Jerin Jacob Kollanukkaran
> <jerinj@marvell.com>; bruce.richardson@intel.com; Akhil Goyal
> <akhil.goyal@nxp.com>; Marko Kovacevic <marko.kovacevic@intel.com>;
> Ori Kam <orika@mellanox.com>; Radu Nicolau <radu.nicolau@intel.com>;
> Tomasz Kantecki <tomasz.kantecki@intel.com>; Sunil Kumar Kori
> <skori@marvell.com>
> Cc: dev@dpdk.org
> Subject: RE: [dpdk-dev] [PATCH v4 08/10] examples/l2fwd-event: add
> eventdev main loop
> 
> >>
> >> From: Pavan Nikhilesh <pbhagavatula@marvell.com>
> >>
> >> Add event dev main loop based on enabled l2fwd options and
> >eventdev
> >> capabilities.
> >>
> >> Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
> >> ---
> >
> ><snip>
> >
> >> +		if (flags & L2FWD_EVENT_TX_DIRECT) {
> >> +			rte_event_eth_tx_adapter_txq_set(mbuf, 0);
> >> +			while
> >> (!rte_event_eth_tx_adapter_enqueue(event_d_id,
> >> +								port_id,
> >> +								&ev, 1)
> >&&
> >> +					!*done)
> >> +				;
> >> +		}
> >
> >In the TX direct mode we can send packets directly to the ethernet
> >device using ethdev
> >API's. This will save unnecessary indirections and event unfolds within
> >the driver.
> 
> How would we guarantee atomicity of access to Tx queues? Between cores
> as we can only use one Tx queue.
> Also, if SCHED_TYPE is ORDERED how would we guarantee flow ordering?
> The capability of MT_LOCKFREE and flow ordering is abstracted through `
> rte_event_eth_tx_adapter_enqueue `.

I understand your objective here. Probably in your case the DIRECT is equivalent
to giving the packet to the scheduler, which will pass on the packet to the destined device.
On NXP platform, DIRECT implies sending the packet directly to the device (eth/crypto),
and scheduler will internally pitch in.
Here we will need another option to send it directly to the device.
We can set up a call to discuss the same, or send patch regarding this to you to incorporate
the same in your series.

> 
> @see examples/eventdev_pipeline and app/test-eventdev/test_pipeline_*.

Yes, we are aware of that, They are one way of representing, how to build a complete eventdev pipeline.
They don't work on NXP HW.
We plan to send patches for them to fix them for NXP HW soon.

Regards,
Nipun

> 
> >
> >> +
> >> +		if (timer_period > 0)
> >> +			__atomic_fetch_add(&eventdev_rsrc-
> >>stats[mbuf-
> >> >port].tx,
> >> +					   1, __ATOMIC_RELAXED);
> >> +	}
> >> +}

  reply	other threads:[~2019-09-30  5:38 UTC|newest]

Thread overview: 107+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-19  9:25 [dpdk-dev] [PATCH v2 00/10] example/l2fwd-event: introduce l2fwd-event example pbhagavatula
2019-09-19  9:25 ` [dpdk-dev] [PATCH v2 01/10] examples/l2fwd-event: add default poll mode routines pbhagavatula
2019-09-19  9:43   ` Sunil Kumar Kori
2019-09-19 10:13   ` [dpdk-dev] [PATCH v3 00/10] example/l2fwd-event: introduce l2fwd-event example pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 01/10] examples/l2fwd-event: add default poll mode routines pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 02/10] examples/l2fwd-event: add infra for eventdev pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 03/10] examples/l2fwd-event: add infra to split eventdev framework pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 04/10] examples/l2fwd-event: add eth port setup for eventdev pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 05/10] examples/l2fwd-event: add eventdev queue and port setup pbhagavatula
2019-09-19 10:35       ` Sunil Kumar Kori
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 06/10] examples/l2fwd-event: add event Rx/Tx adapter setup pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 07/10] examples/l2fwd-event: add service core setup pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 08/10] examples/l2fwd-event: add eventdev main loop pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 09/10] examples/l2fwd-event: add graceful teardown pbhagavatula
2019-09-19 10:13     ` [dpdk-dev] [PATCH v3 10/10] doc: add application usage guide for l2fwd-event pbhagavatula
2019-09-24  9:41     ` [dpdk-dev] [PATCH v4 00/10] example/l2fwd-event: introduce l2fwd-event example pbhagavatula
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 01/10] examples/l2fwd-event: add default poll mode routines pbhagavatula
2019-09-26 17:28         ` Jerin Jacob
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 02/10] examples/l2fwd-event: add infra for eventdev pbhagavatula
2019-09-26 17:33         ` Jerin Jacob
2019-09-27 13:08         ` Nipun Gupta
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 03/10] examples/l2fwd-event: add infra to split eventdev framework pbhagavatula
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 04/10] examples/l2fwd-event: add eth port setup for eventdev pbhagavatula
2019-09-27 13:15         ` Nipun Gupta
2019-09-27 14:45           ` Pavan Nikhilesh Bhagavatula
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 05/10] examples/l2fwd-event: add eventdev queue and port setup pbhagavatula
2019-09-27 13:22         ` Nipun Gupta
2019-09-27 14:43           ` Pavan Nikhilesh Bhagavatula
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 06/10] examples/l2fwd-event: add event Rx/Tx adapter setup pbhagavatula
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 07/10] examples/l2fwd-event: add service core setup pbhagavatula
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 08/10] examples/l2fwd-event: add eventdev main loop pbhagavatula
2019-09-27 13:28         ` Nipun Gupta
2019-09-27 14:35           ` Pavan Nikhilesh Bhagavatula
2019-09-30  5:38             ` Nipun Gupta [this message]
2019-09-30  6:38               ` Jerin Jacob
2019-09-30  7:46                 ` Nipun Gupta
2019-09-30  8:09                   ` Pavan Nikhilesh Bhagavatula
2019-09-30 17:50                     ` Nipun Gupta
2019-10-01  5:59                       ` Pavan Nikhilesh Bhagavatula
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 09/10] examples/l2fwd-event: add graceful teardown pbhagavatula
2019-09-24  9:42       ` [dpdk-dev] [PATCH v4 10/10] doc: add application usage guide for l2fwd-event pbhagavatula
2019-09-26 17:42         ` Jerin Jacob
2019-10-02 20:57       ` [dpdk-dev] [PATCH v5 00/10] example/l2fwd-event: introduce l2fwd-event example pbhagavatula
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 01/10] examples/l2fwd-event: add default poll mode routines pbhagavatula
2019-10-11 14:41           ` Jerin Jacob
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 02/10] examples/l2fwd-event: add infra for eventdev pbhagavatula
2019-10-04 12:30           ` Nipun Gupta
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 03/10] examples/l2fwd-event: add infra to split eventdev framework pbhagavatula
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 04/10] examples/l2fwd-event: add event device setup pbhagavatula
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 05/10] examples/l2fwd-event: add eventdev queue and port setup pbhagavatula
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 06/10] examples/l2fwd-event: add event Rx/Tx adapter setup pbhagavatula
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 07/10] examples/l2fwd-event: add service core setup pbhagavatula
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 08/10] examples/l2fwd-event: add eventdev main loop pbhagavatula
2019-10-11 14:52           ` Jerin Jacob
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 09/10] examples/l2fwd-event: add graceful teardown pbhagavatula
2019-10-02 20:57         ` [dpdk-dev] [PATCH v5 10/10] doc: add application usage guide for l2fwd-event pbhagavatula
2019-10-11 14:11           ` Jerin Jacob
2019-10-03 10:33         ` [dpdk-dev] [PATCH v5 00/10] example/l2fwd-event: introduce l2fwd-event example Jerin Jacob
2019-10-03 12:40           ` Hemant Agrawal
2019-10-03 12:47             ` Jerin Jacob
2019-10-09  7:50         ` Nipun Gupta
2019-10-14 18:22         ` [dpdk-dev] [PATCH v6 " pbhagavatula
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 01/10] examples/l2fwd-event: add default poll mode routines pbhagavatula
2019-10-16 19:07             ` Stephen Hemminger
2019-10-21  3:29             ` Varghese, Vipin
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 02/10] examples/l2fwd-event: add infra for eventdev pbhagavatula
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 03/10] examples/l2fwd-event: add infra to split eventdev framework pbhagavatula
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 04/10] examples/l2fwd-event: add event device setup pbhagavatula
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 05/10] examples/l2fwd-event: add eventdev queue and port setup pbhagavatula
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 06/10] examples/l2fwd-event: add event Rx/Tx adapter setup pbhagavatula
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 07/10] examples/l2fwd-event: add service core setup pbhagavatula
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 08/10] examples/l2fwd-event: add eventdev main loop pbhagavatula
2019-10-21  3:19             ` Varghese, Vipin
2019-10-21 16:53               ` Pavan Nikhilesh Bhagavatula
2019-10-22  3:13                 ` Varghese, Vipin
2019-10-22 17:02                   ` Pavan Nikhilesh Bhagavatula
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 09/10] examples/l2fwd-event: add graceful teardown pbhagavatula
2019-10-21  3:12             ` Varghese, Vipin
2019-10-21 16:56               ` Pavan Nikhilesh Bhagavatula
2019-10-22  2:48                 ` Varghese, Vipin
2019-10-14 18:22           ` [dpdk-dev] [PATCH v6 10/10] doc: add application usage guide for l2fwd-event pbhagavatula
2019-10-16 12:38           ` [dpdk-dev] [PATCH v6 00/10] example/l2fwd-event: introduce l2fwd-event example Jerin Jacob
2019-10-21  3:25           ` Varghese, Vipin
2019-10-21 17:02             ` Pavan Nikhilesh Bhagavatula
2019-10-22  2:57               ` Varghese, Vipin
2019-10-22 15:55                 ` Pavan Nikhilesh Bhagavatula
2019-10-26 11:10           ` [dpdk-dev] [PATCH v7 " pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 01/10] examples/l2fwd-event: add default poll mode routines pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 02/10] examples/l2fwd-event: add infra for eventdev pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 03/10] examples/l2fwd-event: add infra to split eventdev framework pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 04/10] examples/l2fwd-event: add event device setup pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 05/10] examples/l2fwd-event: add eventdev queue and port setup pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 06/10] examples/l2fwd-event: add event Rx/Tx adapter setup pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 07/10] examples/l2fwd-event: add service core setup pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 08/10] examples/l2fwd-event: add eventdev main loop pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 09/10] examples/l2fwd-event: add graceful teardown pbhagavatula
2019-10-26 11:10             ` [dpdk-dev] [PATCH v7 10/10] doc: add application usage guide for l2fwd-event pbhagavatula
2019-10-30 13:19               ` Jerin Jacob
2019-10-30 12:58             ` [dpdk-dev] [PATCH v7 00/10] example/l2fwd-event: introduce l2fwd-event example Jerin Jacob
2019-09-19  9:25 ` [dpdk-dev] [PATCH v2 02/10] examples/l2fwd-event: add infra for eventdev pbhagavatula
2019-09-19  9:25 ` [dpdk-dev] [PATCH v2 03/10] examples/l2fwd-event: add infra to split eventdev framework pbhagavatula
2019-09-19  9:25 ` [dpdk-dev] [PATCH v2 04/10] examples/l2fwd-event: add eth port setup for eventdev pbhagavatula
2019-09-19  9:25 ` [dpdk-dev] [PATCH v2 05/10] examples/l2fwd-event: add eventdev queue and port setup pbhagavatula
2019-09-19  9:26 ` [dpdk-dev] [PATCH v2 06/10] examples/l2fwd-event: add event Rx/Tx adapter setup pbhagavatula
2019-09-19  9:26 ` [dpdk-dev] [PATCH v2 07/10] examples/l2fwd-event: add service core setup pbhagavatula
2019-09-19  9:26 ` [dpdk-dev] [PATCH v2 08/10] examples/l2fwd-event: add eventdev main loop pbhagavatula
2019-09-19  9:26 ` [dpdk-dev] [PATCH v2 09/10] examples/l2fwd-event: add graceful teardown pbhagavatula

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