From: Jerin Jacob <jerinjacobk@gmail.com>
To: "Mattias Rönnblom" <hofors@lysator.liu.se>
Cc: Bruce Richardson <bruce.richardson@intel.com>,
dev@dpdk.org, jerinj@marvell.com, mattias.ronnblom@ericsson.com,
abdullah.sevincer@intel.com, sachin.saxena@oss.nxp.com,
hemant.agrawal@nxp.com, pbhagavatula@marvell.com,
pravin.pathak@intel.com
Subject: Re: [PATCH v3 01/11] eventdev: improve doxygen introduction text
Date: Fri, 9 Feb 2024 14:13:27 +0530 [thread overview]
Message-ID: <CALBAE1OqFkmShjg50YLotRRshaF-s1gq+42SAEpRfv4yfHu9xA@mail.gmail.com> (raw)
In-Reply-To: <7177dc02-8e31-47cd-baf2-41cb3eee6fe4@lysator.liu.se>
On Thu, Feb 8, 2024 at 3:20 PM Mattias Rönnblom <hofors@lysator.liu.se> wrote:
>
> On 2024-02-07 11:14, Jerin Jacob wrote:
> > On Fri, Feb 2, 2024 at 7:29 PM Bruce Richardson
> > <bruce.richardson@intel.com> wrote:
> >>
> >> Make some textual improvements to the introduction to eventdev and event
> >> devices in the eventdev header file. This text appears in the doxygen
> >> output for the header file, and introduces the key concepts, for
> >> example: events, event devices, queues, ports and scheduling.
> >>
> >> This patch makes the following improvements:
> >> * small textual fixups, e.g. correcting use of singular/plural
> >> * rewrites of some sentences to improve clarity
> >> * using doxygen markdown to split the whole large block up into
> >> sections, thereby making it easier to read.
> >>
> >> No large-scale changes are made, and blocks are not reordered
> >>
> >> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> >
> > Thanks Bruce, While you are cleaning up, Please add following or
> > similar change to fix for not properly
> > parsing the struct rte_event_vector. i.e it is coming as global
> > variables in html files.
> >
> > l[dpdk.org] $ git diff
> > diff --git a/lib/eventdev/rte_eventdev.h b/lib/eventdev/rte_eventdev.h
> > index e31c927905..ce4a195a8f 100644
> > --- a/lib/eventdev/rte_eventdev.h
> > +++ b/lib/eventdev/rte_eventdev.h
> > @@ -1309,9 +1309,9 @@ struct rte_event_vector {
> > */
> > struct {
> > uint16_t port;
> > - /* Ethernet device port id. */
> > + /**< Ethernet device port id. */
> > uint16_t queue;
> > - /* Ethernet device queue id. */
> > + /**< Ethernet device queue id. */
> > };
> > };
> > /**< Union to hold common attributes of the vector array. */
> > @@ -1340,7 +1340,11 @@ struct rte_event_vector {
> > * vector array can be an array of mbufs or pointers or opaque u64
> > * values.
> > */
> > +#ifndef __DOXYGEN__
> > } __rte_aligned(16);
> > +#else
> > +};
> > +#endif
> >
> > /* Scheduler type definitions */
> > #define RTE_SCHED_TYPE_ORDERED 0
> >
> >>
> >> ---
> >> V3: reworked following feedback from Mattias
> >> ---
> >> lib/eventdev/rte_eventdev.h | 132 ++++++++++++++++++++++--------------
> >> 1 file changed, 81 insertions(+), 51 deletions(-)
> >>
> >> diff --git a/lib/eventdev/rte_eventdev.h b/lib/eventdev/rte_eventdev.h
> >> index ec9b02455d..a741832e8e 100644
> >> --- a/lib/eventdev/rte_eventdev.h
> >> +++ b/lib/eventdev/rte_eventdev.h
> >> @@ -12,25 +12,33 @@
> >> * @file
> >> *
> >> * RTE Event Device API
> >> + * ====================
> >> *
> >> - * In a polling model, lcores poll ethdev ports and associated rx queues
> >> - * directly to look for packet. In an event driven model, by contrast, lcores
> >> - * call the scheduler that selects packets for them based on programmer
> >> - * specified criteria. Eventdev library adds support for event driven
> >> - * programming model, which offer applications automatic multicore scaling,
> >> - * dynamic load balancing, pipelining, packet ingress order maintenance and
> >> - * synchronization services to simplify application packet processing.
> >> + * In a traditional run-to-completion application model, lcores pick up packets
> >
> > Can we keep it is as poll mode instead of run-to-completion as event mode also
> > supports run to completion by having dequuee() and then Tx.
> >
>
> A "traditional" DPDK app is both polling and run-to-completion. You
> could always add "polling" somewhere, but "run-to-completion" in that
> context serves a purpose, imo.
Yeah. Some event devices can actually sleep to save power if packet is
not present(using WFE in arm64 world).
I think, We can be more specific then, like
In a traditional run-to-completion application model where packet are
dequeued from NIC RX queues, .......
>
> A single-stage eventdev-based pipeline will also process packets in a
> run-to-completion fashion. In such a scenario, the difference between
> eventdev and the "tradition" lies in the (ingress-only) load balancing
> mechanism used (which the below note on the "traditional" use of RSS
> indicates).
next prev parent reply other threads:[~2024-02-09 8:43 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-18 13:45 [PATCH v1 0/7] improve eventdev API specification/documentation Bruce Richardson
2024-01-18 13:45 ` [PATCH v1 1/7] eventdev: improve doxygen introduction text Bruce Richardson
2024-01-18 13:45 ` [PATCH v1 2/7] eventdev: move text on driver internals to proper section Bruce Richardson
2024-01-18 13:45 ` [PATCH v1 3/7] eventdev: update documentation on device capability flags Bruce Richardson
2024-01-18 13:45 ` [PATCH v1 4/7] eventdev: cleanup doxygen comments on info structure Bruce Richardson
2024-01-18 13:49 ` Bruce Richardson
2024-01-18 13:45 ` [PATCH v1 5/7] eventdev: improve function documentation for query fns Bruce Richardson
2024-01-18 13:45 ` [PATCH v1 6/7] eventdev: improve doxygen comments on configure struct Bruce Richardson
2024-01-18 13:45 ` [PATCH v1 7/7] eventdev: fix documentation for counting single-link ports Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 00/11] improve eventdev API specification/documentation Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 01/11] eventdev: improve doxygen introduction text Bruce Richardson
2024-01-23 8:57 ` Mattias Rönnblom
2024-01-23 9:06 ` Bruce Richardson
2024-01-24 11:37 ` Mattias Rönnblom
2024-01-31 13:45 ` Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 02/11] eventdev: move text on driver internals to proper section Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 03/11] eventdev: update documentation on device capability flags Bruce Richardson
2024-01-23 9:18 ` Mattias Rönnblom
2024-01-23 9:34 ` Bruce Richardson
2024-01-31 14:09 ` Bruce Richardson
2024-02-02 8:58 ` Mattias Rönnblom
2024-02-02 11:20 ` Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 04/11] eventdev: cleanup doxygen comments on info structure Bruce Richardson
2024-01-23 9:35 ` Mattias Rönnblom
2024-01-23 9:43 ` Bruce Richardson
2024-01-24 11:51 ` Mattias Rönnblom
2024-01-31 14:37 ` Bruce Richardson
2024-02-02 9:24 ` Mattias Rönnblom
2024-02-02 10:30 ` Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 05/11] eventdev: improve function documentation for query fns Bruce Richardson
2024-01-23 9:40 ` Mattias Rönnblom
2024-01-19 17:43 ` [PATCH v2 06/11] eventdev: improve doxygen comments on configure struct Bruce Richardson
2024-01-23 9:46 ` Mattias Rönnblom
2024-01-31 16:15 ` Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 07/11] eventdev: fix documentation for counting single-link ports Bruce Richardson
2024-01-23 9:48 ` Mattias Rönnblom
2024-01-23 9:56 ` Bruce Richardson
2024-01-31 16:18 ` Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 08/11] eventdev: improve doxygen comments on config fns Bruce Richardson
2024-01-23 10:00 ` Mattias Rönnblom
2024-01-23 10:07 ` Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 09/11] eventdev: improve doxygen comments for control APIs Bruce Richardson
2024-01-23 10:10 ` Mattias Rönnblom
2024-01-19 17:43 ` [PATCH v2 10/11] eventdev: RFC clarify comments on scheduling types Bruce Richardson
2024-01-23 16:19 ` Mattias Rönnblom
2024-01-24 11:21 ` Bruce Richardson
2024-01-31 17:54 ` Bruce Richardson
2024-01-19 17:43 ` [PATCH v2 11/11] eventdev: RFC clarify docs on event object fields Bruce Richardson
2024-01-24 11:34 ` Mattias Rönnblom
2024-02-01 16:59 ` Bruce Richardson
2024-02-02 9:38 ` Mattias Rönnblom
2024-02-02 11:33 ` Bruce Richardson
2024-02-02 12:02 ` Bruce Richardson
2024-02-01 17:02 ` Bruce Richardson
2024-02-02 9:14 ` Bruce Richardson
2024-02-02 9:22 ` Jerin Jacob
2024-02-02 9:36 ` Bruce Richardson
2024-02-02 9:45 ` Mattias Rönnblom
2024-02-02 10:32 ` Bruce Richardson
2024-02-01 9:35 ` Bruce Richardson
2024-02-01 15:00 ` Jerin Jacob
2024-02-01 15:24 ` Bruce Richardson
2024-02-01 16:20 ` Jerin Jacob
2024-02-02 12:39 ` [PATCH v3 00/11] improve eventdev API specification/documentation Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 01/11] eventdev: improve doxygen introduction text Bruce Richardson
2024-02-07 10:14 ` Jerin Jacob
2024-02-08 9:50 ` Mattias Rönnblom
2024-02-09 8:43 ` Jerin Jacob [this message]
2024-02-10 7:24 ` Mattias Rönnblom
2024-02-20 16:28 ` Bruce Richardson
2024-02-20 16:33 ` Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 02/11] eventdev: move text on driver internals to proper section Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 03/11] eventdev: update documentation on device capability flags Bruce Richardson
2024-02-07 10:30 ` Jerin Jacob
2024-02-20 16:42 ` Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 04/11] eventdev: cleanup doxygen comments on info structure Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 05/11] eventdev: improve function documentation for query fns Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 06/11] eventdev: improve doxygen comments on configure struct Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 07/11] eventdev: improve doxygen comments on config fns Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 08/11] eventdev: improve doxygen comments for control APIs Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 09/11] eventdev: improve comments on scheduling types Bruce Richardson
2024-02-08 9:18 ` Jerin Jacob
2024-02-08 10:04 ` Mattias Rönnblom
2024-02-20 17:23 ` Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 10/11] eventdev: clarify docs on event object fields and op types Bruce Richardson
2024-02-09 9:14 ` Jerin Jacob
2024-02-20 17:39 ` Bruce Richardson
2024-02-21 9:31 ` Jerin Jacob
2024-02-21 10:28 ` Bruce Richardson
2024-02-20 17:50 ` Bruce Richardson
2024-02-20 18:03 ` Bruce Richardson
2024-02-02 12:39 ` [PATCH v3 11/11] eventdev: drop comment for anon union from doxygen Bruce Richardson
2024-02-21 10:32 ` [PATCH v4 00/12] improve eventdev API specification/documentation Bruce Richardson
2024-02-21 10:32 ` [PATCH v4 01/12] eventdev: improve doxygen introduction text Bruce Richardson
2024-02-26 4:51 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-26 9:59 ` Bruce Richardson
2024-02-29 16:13 ` Jerin Jacob
2024-02-21 10:32 ` [PATCH v4 02/12] eventdev: move text on driver internals to proper section Bruce Richardson
2024-02-26 5:01 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 03/12] eventdev: update documentation on device capability flags Bruce Richardson
2024-02-26 5:07 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 04/12] eventdev: cleanup doxygen comments on info structure Bruce Richardson
2024-02-26 5:18 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 05/12] eventdev: improve function documentation for query fns Bruce Richardson
2024-02-26 5:18 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 06/12] eventdev: improve doxygen comments on configure struct Bruce Richardson
2024-02-26 6:36 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 07/12] eventdev: improve doxygen comments on config fns Bruce Richardson
2024-02-26 6:43 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-26 6:44 ` Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 08/12] eventdev: improve doxygen comments for control APIs Bruce Richardson
2024-02-26 6:44 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 09/12] eventdev: improve comments on scheduling types Bruce Richardson
2024-02-26 6:49 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 10/12] eventdev: clarify docs on event object fields and op types Bruce Richardson
2024-02-26 6:52 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 11/12] eventdev: drop comment for anon union from doxygen Bruce Richardson
2024-02-26 6:52 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-02-21 10:32 ` [PATCH v4 12/12] eventdev: fix doxygen processing of event vector struct Bruce Richardson
2024-02-26 6:53 ` [EXT] " Pavan Nikhilesh Bhagavatula
2024-03-04 15:35 ` Thomas Monjalon
2024-03-04 15:49 ` Bruce Richardson
2024-02-23 12:36 ` [PATCH v4 00/12] improve eventdev API specification/documentation Jerin Jacob
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