From: Thomas Monjalon <thomas@monjalon.net>
To: "Dumitrescu, Cristian" <cristian.dumitrescu@intel.com>
Cc: dev@dpdk.org,
"jerin.jacob@caviumnetworks.com" <jerin.jacob@caviumnetworks.com>,
"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
"Singh, Jasvinder" <jasvinder.singh@intel.com>,
"Lu, Wenzhuo" <wenzhuo.lu@intel.com>,
"O'Driscoll, Tim" <tim.odriscoll@intel.com>,
"Glynn, Michael J" <michael.j.glynn@intel.com>,
Adrien Mazarguil <adrien.mazarguil@6wind.com>
Subject: Re: [dpdk-dev] [pull-request] next-tm 17.08 pre-rc1
Date: Mon, 10 Jul 2017 17:54:21 +0200 [thread overview]
Message-ID: <1847745.dtTWFNCcJQ@xps> (raw)
In-Reply-To: <3EB4FA525960D640B5BDFFD6A3D891267BA7DA96@IRSMSX108.ger.corp.intel.com>
10/07/2017 17:46, Dumitrescu, Cristian:
> From: Thomas Monjalon [mailto:thomas@monjalon.net]
> > 10/07/2017 15:21, Dumitrescu, Cristian:
> > > From: Thomas Monjalon [mailto:thomas@monjalon.net]
> > > > 10/07/2017 12:55, Dumitrescu, Cristian:
> > > > > From: Thomas Monjalon [mailto:thomas@monjalon.net]
> > > > > > 2/ Some functions are exposed in the API to query the ops.
> > > > > > It seems dangerous and useless:
> > > > > > - rte_eth_dev_tm_ops_get
> > > > > > - rte_tm_ops_get
> > > > >
> > > > > Thomas, hopefully this is a misunderstanding on your side :(((.
> > > >
> > > > Don't worry :)
> > > >
> > > > > This is a critical point that we debated ad nauseam on this email list
> > (RFC, V1
> > > > -V6) and privately as well. You were included in the conversation, you
> > also
> > > > provided feed-back that we incorporated in the code, as documented in
> > the
> > > > patchset history log.
> > > > >
> > > > > This is simply the mechanism that we (including you) agreed to use for
> > > > modularizing the DPDK ethdev by adding new functionality in a modular
> > plug-
> > > > in way using separate namespace. This is the exact clone of the same
> > > > mechanism that rte_flow is using and was merged in DPDK release 17.02.
> > > > Why this change on the fundamentals now?
> > > > >
> > > > > Hopefully, it is just misunderstanding.
> > > >
> > > > I mean that only the drivers need to get the ops.
> > > > The applications are using some dedicated functions rte_tm_* , right?
> > > > So the applications does not need direct ops access with
> > > > rte_eth_dev_tm_ops_get()?
> > > > Sorry if it is my misunderstanding.
> > > >
> > > > About rte_tm_ops_get, I don't remember why I talked about it.
> > > > It seems exposed only to drivers. My mistake. No issue there.
> > >
> > > OK, so we're good then?
> >
> > Not exactly. In my understanding, rte_eth_dev_tm_ops_get() is useless.
> > Should it be removed then?
>
> Why do you think it is useless? How would the driver get the function specific (i.e. rte_flow, rte_tm, ...) operations structure?
The drivers get the structure via rte_tm_ops_get() function which is
in the well named file rte_tm_driver.h
My question is about rte_eth_dev_tm_ops_get() function which is
in the file rte_ethdev.h.
Please explain the difference between both functions and why
rte_eth_dev_tm_ops_get() is needed.
Sorry for opening the discussion, I don't see the explanation in doxygen.
next prev parent reply other threads:[~2017-07-10 15:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-04 15:38 Cristian Dumitrescu
2017-07-04 15:47 ` Thomas Monjalon
2017-07-04 16:52 ` Dumitrescu, Cristian
2017-07-04 20:21 ` Thomas Monjalon
2017-07-05 10:36 ` Dumitrescu, Cristian
2017-07-09 20:01 ` Thomas Monjalon
2017-07-10 7:43 ` Adrien Mazarguil
2017-07-10 7:51 ` Thomas Monjalon
2017-07-10 10:55 ` Dumitrescu, Cristian
2017-07-10 12:57 ` Thomas Monjalon
2017-07-10 13:21 ` Dumitrescu, Cristian
2017-07-10 13:49 ` Thomas Monjalon
2017-07-10 15:46 ` Dumitrescu, Cristian
2017-07-10 15:54 ` Thomas Monjalon [this message]
2017-07-10 16:47 ` Dumitrescu, Cristian
2017-07-10 16:58 ` Thomas Monjalon
2017-07-11 18:20 ` Dumitrescu, Cristian
2017-07-12 17:33 ` Thomas Monjalon
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