From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: "Vangati, Narender" <narender.vangati@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>, "Eads, Gage" <gage.eads@intel.com>,
"thomas.monjalon@6wind.com" <thomas.monjalon@6wind.com>
Subject: Re: [dpdk-dev] [RFC] [PATCH v2] libeventdev: event driven programming model framework for DPDK
Date: Fri, 28 Oct 2016 08:31:41 +0530 [thread overview]
Message-ID: <20161028030140.GA2967@localhost.localdomain> (raw)
In-Reply-To: <20161026125414.GB33288@bricha3-MOBL3.ger.corp.intel.com>
On Wed, Oct 26, 2016 at 01:54:14PM +0100, Bruce Richardson wrote:
> On Wed, Oct 26, 2016 at 05:54:17PM +0530, Jerin Jacob wrote:
> > On Wed, Oct 26, 2016 at 12:11:03PM +0000, Van Haaren, Harry wrote:
> > > > -----Original Message-----
> > > > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Jerin Jacob
> Thanks. One other suggestion is that it might be useful to provide
> support for having typed queues explicitly in the API. Right now, when
> you create an queue, the queue_conf structure takes as parameters how
> many atomic flows that are needed for the queue, or how many reorder
> slots need to be reserved for it. This implicitly hints at the type of
> traffic which will be sent to the queue, but I'm wondering if it's
> better to make it explicit. There are certain optimisations that can be
> looked at if we know that a queue only handles packets of a particular
> type. [Not having to handle reordering when pulling events from a core
> can be a big win for software!].
If it helps in SW implementation, then I think we can add this in queue
configuration.
>
> How about adding: "allowed_event_types" as a field to
> rte_event_queue_conf, with possible values:
> * atomic
> * ordered
> * parallel
> * mixed - allowing all 3 types. I think allowing 2 of three types might
> make things too complicated.
>
> An open question would then be how to behave when the queue type and
> requested event type conflict. We can either throw an error, or just
> ignore the event type and always treat enqueued events as being of the
> queue type. I prefer the latter, because it's faster not having to
> error-check, and it pushes the responsibility on the app to know what
> it's doing.
How about making default as "mixed" and let application configures what
is not required?. That way application responsibility is clear.
something similar to ETH_TXQ_FLAGS_NOMULTSEGS, ETH_TXQ_FLAGS_NOREFCOUNT
with default.
/Jerin
>
> /Bruce
next prev parent reply other threads:[~2016-10-28 3:02 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-04 21:49 [dpdk-dev] [RFC] " Vangati, Narender
2016-10-05 7:24 ` Jerin Jacob
2016-10-07 10:40 ` Hemant Agrawal
2016-10-09 8:27 ` Jerin Jacob
2016-10-11 19:30 ` [dpdk-dev] [RFC] [PATCH v2] " Jerin Jacob
2016-10-14 4:14 ` Bill Fischofer
2016-10-14 9:26 ` Jerin Jacob
2016-10-14 10:30 ` Hemant Agrawal
2016-10-14 12:52 ` Jerin Jacob
2016-10-14 15:00 ` Eads, Gage
2016-10-17 4:18 ` Jerin Jacob
2016-10-17 20:26 ` Eads, Gage
2016-10-18 11:19 ` Jerin Jacob
2016-10-14 16:02 ` Bruce Richardson
2016-10-17 5:10 ` Jerin Jacob
2016-10-25 17:49 ` Jerin Jacob
2016-10-26 12:11 ` Van Haaren, Harry
2016-10-26 12:24 ` Jerin Jacob
2016-10-26 12:54 ` Bruce Richardson
2016-10-28 3:01 ` Jerin Jacob [this message]
2016-10-28 8:36 ` Bruce Richardson
2016-10-28 9:06 ` Jerin Jacob
2016-11-02 11:25 ` Jerin Jacob
2016-11-02 11:35 ` Bruce Richardson
2016-11-02 13:09 ` Jerin Jacob
2016-11-02 13:56 ` Bruce Richardson
2016-11-02 14:54 ` Jerin Jacob
2016-10-26 18:37 ` Vincent Jardin
2016-10-28 13:10 ` Van Haaren, Harry
2016-11-02 10:47 ` Jerin Jacob
2016-11-02 11:45 ` Bruce Richardson
2016-11-02 12:34 ` Jerin Jacob
2016-10-26 12:43 ` Bruce Richardson
2016-10-26 17:30 ` Jerin Jacob
2016-10-28 13:48 ` Van Haaren, Harry
2016-10-28 14:16 ` Bruce Richardson
2016-11-02 8:59 ` Jerin Jacob
2016-11-02 8:06 ` Jerin Jacob
2016-11-02 11:48 ` Bruce Richardson
2016-11-02 12:57 ` Jerin Jacob
2016-10-14 15:00 Francois Ozog
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