dev.dpdk.org archive mirror
 help / color / mirror / Atom feed
From: Neil Horman <nhorman@tuxdriver.com>
To: Hemant Agrawal <hemant.agrawal@nxp.com>
Cc: "david.marchand@redhat.com" <david.marchand@redhat.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
	Bruce Richardson <bruce.richardson@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>,
	Akhil Goyal <akhil.goyal@nxp.com>
Subject: Re: [dpdk-dev] [PATCH v2 05/10] fslmc: identify internal only functions and tag them as __rte_internal
Date: Thu, 2 Apr 2020 07:30:35 -0400	[thread overview]
Message-ID: <20200402113035.GA4063060@hmswarspite.think-freely.org> (raw)
In-Reply-To: <VI1PR0401MB2541C41E45F1895704610D1789C60@VI1PR0401MB2541.eurprd04.prod.outlook.com>

On Thu, Apr 02, 2020 at 09:49:20AM +0000, Hemant Agrawal wrote:
> HI Neil,
> > On Mon, Jun 17, 2019 at 07:30:34AM +0000, Hemant Agrawal wrote:
> > > HI Neil,
> > > 	The same code of low-level HW driver is shared with different OSs
> > (kernel, uboot etc) and different framework. If we introduce rte_internal in
> > these low-level hw files, it will be a big maintenance issue for NXP. Everytime
> > there is a change or upgrade, it will be a pain.
> > >
> > Why?  If you don't want to support the use of a project specific tag in other
> > projects, you can add a global cflag to those like this:
> > -D__rte_experimental
> > 
> > and the code will be eliminated
> > 
> > I'm not sure what you see as difficult here
> [Hemant] 
> Do, we have an alternate for this approach?
> 
No, what issue do you see with the approach suggested above?


> Also, w.r.t to changes, at present you are adding the "__rte_internal" after the function return type. Is it possible to add it before the function return type and limiting the changes to header file only i.e. something similar to the current approach of "__rte_experimental"
The __rte_internal macro expands to a function attribute, and the gcc manual
mandates that it be inserted between the return type and function name.  As for
its application in both the prototypes and declarations, I'd need to go back and
look again, I can't recall if that can be done.

> => current approach
> >   * Return:	'0' on Success; Error code otherwise.
> >   */
> > -int dpbp_open(struct fsl_mc_io *mc_io,
> > +int __rte_internal dpbp_open(struct fsl_mc_io *mc_io,
> >  	      uint32_t cmd_flags,
> >  	      int dpbp_id,
> >  	      uint16_t *token)
> 
> => approach used in rte_experimental
> >__rte_experimental
> >uint16_t
> >rte_bbdev_count(void);
> 
> This will help in minimizing the changes.
> 
> Regards,
> Hemant
> 
> > 
> > Neil
> > 
> > > Regards,
> > > Hemant
> > >
> > > > -----Original Message-----
> > > > From: Neil Horman <nhorman@tuxdriver.com>
> > > > Sent: Thursday, June 13, 2019 7:54 PM
> > > > To: dev@dpdk.org
> > > > Cc: Neil Horman <nhorman@tuxdriver.com>; Jerin Jacob Kollanukkaran
> > > > <jerinj@marvell.com>; Bruce Richardson <bruce.richardson@intel.com>;
> > > > Thomas Monjalon <thomas@monjalon.net>; Hemant Agrawal
> > > > <hemant.agrawal@nxp.com>; Shreyansh Jain <shreyansh.jain@nxp.com>
> > > > Subject: [PATCH v2 05/10] fslmc: identify internal only functions
> > > > and tag them as __rte_internal
> > > > Importance: High
> > > >
> > > > Identify functions in fslmc bus driver which are internal (based on
> > > > their not having an rte_ prefix) and tag them with __rte_internal
> > > >
> > >
> 

  reply	other threads:[~2020-04-02 11:30 UTC|newest]

Thread overview: 104+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-25 18:43 [dpdk-dev] [RFC PATCH 0/2] introduce __rte_internal tag Neil Horman
2019-05-25 18:43 ` [dpdk-dev] [RFC PATCH 1/2] Add __rte_internal tag for functions and version target Neil Horman
2019-06-05 16:14   ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-05-25 18:43 ` [dpdk-dev] [RFC PATCH 2/2] Convert dpaa driver to tag internal-only symbols appropriately Neil Horman
2019-06-05 16:24 ` [dpdk-dev] [EXT] [RFC PATCH 0/2] introduce __rte_internal tag Jerin Jacob Kollanukkaran
2019-06-05 16:45   ` Bruce Richardson
2019-06-05 18:11     ` Neil Horman
2019-06-06  9:44       ` Jerin Jacob Kollanukkaran
2019-06-06 11:34         ` Neil Horman
2019-06-06 12:04           ` Jerin Jacob Kollanukkaran
2019-06-06 13:18             ` Wiles, Keith
2019-06-06 13:43               ` Neil Horman
2019-06-06 13:53                 ` Wiles, Keith
2019-06-06 14:46                   ` Neil Horman
2019-06-06 13:35             ` Neil Horman
2019-06-06 14:02               ` Jerin Jacob Kollanukkaran
2019-06-06 15:03                 ` Neil Horman
2019-06-06 15:14                   ` Jerin Jacob Kollanukkaran
2019-06-06 15:26                     ` Neil Horman
2019-06-06 16:23                       ` Jerin Jacob Kollanukkaran
2019-06-06 16:55                         ` Neil Horman
2019-06-07  9:41                           ` Jerin Jacob Kollanukkaran
2019-06-07 10:35                             ` Neil Horman
2019-06-07 15:42                   ` Ray Kinsella
2019-06-07 18:21                     ` Wiles, Keith
2020-01-09 15:49                       ` Neil Horman
2019-06-12 20:38 ` [dpdk-dev] [PATCH v1 0/9] dpdk: " Neil Horman
2019-06-12 20:38   ` [dpdk-dev] [PATCH v1 1/9] Add __rte_internal tag for functions and version target Neil Horman
2019-06-12 20:38   ` [dpdk-dev] [PATCH v1 2/9] Exempt INTERNAL symbols from checking Neil Horman
2019-06-12 20:38   ` [dpdk-dev] [PATCH v1 3/9] mark dpaa driver internal-only symbols with __rte_internal Neil Horman
2019-06-12 20:38   ` [dpdk-dev] [PATCH v1 4/9] fslmc: identify internal only functions and tag them as __rte_internal Neil Horman
2019-06-12 20:38   ` [dpdk-dev] [PATCH v1 5/9] dpaa2: Adjust dpaa2 driver to mark internal symbols with __rte_internal Neil Horman
2019-06-12 20:39   ` [dpdk-dev] [PATCH v1 6/9] dpaax: mark internal functions " Neil Horman
2019-06-12 20:39   ` [dpdk-dev] [PATCH v1 7/9] cpt: " Neil Horman
2019-06-17  5:27     ` [dpdk-dev] [EXT] " Anoob Joseph
2019-06-12 20:39   ` [dpdk-dev] [PATCH v1 8/9] octeonx: " Neil Horman
2019-06-12 20:39   ` [dpdk-dev] [PATCH v1 9/9] dpaa2: " Neil Horman
2019-06-12 21:14     ` Aaron Conole
2019-06-13 10:24       ` Neil Horman
2019-06-13  7:53   ` [dpdk-dev] [PATCH v1 0/9] dpdk: introduce __rte_internal tag David Marchand
2019-06-13 10:30     ` Neil Horman
2019-06-13 14:23 ` [dpdk-dev] [PATCH v2 0/10] " Neil Horman
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 01/10] Add __rte_internal tag for functions and version target Neil Horman
2020-04-17  2:04     ` Wang, Haiyue
2020-04-17  2:38       ` Neil Horman
2020-04-17  4:40         ` Wang, Haiyue
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 02/10] meson: add BUILDING_RTE_SDK Neil Horman
2019-06-13 14:44     ` Bruce Richardson
2019-06-19 10:39       ` Neil Horman
2019-06-19 10:46         ` Bruce Richardson
2019-06-19 18:34           ` Neil Horman
2019-06-20 10:20             ` Bruce Richardson
2019-06-20 10:21     ` Bruce Richardson
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 03/10] Exempt INTERNAL symbols from checking Neil Horman
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 04/10] mark dpaa driver internal-only symbols with __rte_internal Neil Horman
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 05/10] fslmc: identify internal only functions and tag them as __rte_internal Neil Horman
2019-06-17  7:30     ` Hemant Agrawal
2019-06-19 10:45       ` Neil Horman
2020-04-02  9:49         ` Hemant Agrawal
2020-04-02 11:30           ` Neil Horman [this message]
2020-04-02 15:44             ` Hemant Agrawal
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 06/10] dpaa2: Adjust dpaa2 driver to mark internal symbols with __rte_internal Neil Horman
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 07/10] dpaax: mark internal functions " Neil Horman
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 08/10] cpt: " Neil Horman
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 09/10] octeonx: " Neil Horman
2019-06-13 14:23   ` [dpdk-dev] [PATCH v2 10/10] dpaa2: " Neil Horman
2019-08-06 10:03   ` [dpdk-dev] [PATCH v2 0/10] dpdk: introduce __rte_internal tag Thomas Monjalon
2019-08-06 12:21     ` Neil Horman
2020-01-09  9:55       ` David Marchand
2020-01-09 11:46         ` Neil Horman
2020-01-09 11:53           ` David Marchand
2020-04-22 13:52   ` [dpdk-dev] [PATCH v3 0/1] " Haiyue Wang
2020-04-22 13:52     ` [dpdk-dev] [PATCH v3 1/1] eal: add internal ABI mark support Haiyue Wang
2020-04-22 14:13       ` David Marchand
2020-04-22 16:44         ` Wang, Haiyue
2020-04-22 16:37   ` [dpdk-dev] [PATCH v4 0/1] dpdk: introduce __rte_internal tag Haiyue Wang
2020-04-22 16:37     ` [dpdk-dev] [PATCH v4 1/1] eal: add internal ABI mark support Haiyue Wang
2020-04-23  3:19   ` [dpdk-dev] [PATCH v5 0/1] dpdk: introduce __rte_internal tag Haiyue Wang
2020-04-23  3:19     ` [dpdk-dev] [PATCH v5 1/1] eal: add internal ABI marking support Haiyue Wang
2020-04-24 14:52       ` David Marchand
2020-04-25  6:10         ` Wang, Haiyue
2020-04-25 14:21           ` David Marchand
2020-04-25 14:24             ` Thomas Monjalon
2020-04-25  6:04   ` [dpdk-dev] [PATCH v6 0/6] dpdk: introduce __rte_internal tag Haiyue Wang
2020-04-25  6:04     ` [dpdk-dev] [PATCH v6 1/6] eal: add internal ABI tag definition Haiyue Wang
2020-04-25  6:04     ` [dpdk-dev] [PATCH v6 2/6] build: enable internal API tag Haiyue Wang
2020-04-25  6:04     ` [dpdk-dev] [PATCH v6 3/6] mk: add internal tag check Haiyue Wang
2020-04-25  6:04     ` [dpdk-dev] [PATCH v6 4/6] devtools: ignore internal ABI check Haiyue Wang
2020-04-25  6:04     ` [dpdk-dev] [PATCH v6 5/6] devtools: exempt internal ABI checking Haiyue Wang
2020-04-25  6:04     ` [dpdk-dev] [PATCH v6 6/6] devtools: enforce internal tag at the beginning Haiyue Wang
2020-04-25 10:56   ` [dpdk-dev] [PATCH v7 0/6] dpdk: introduce __rte_internal tag Haiyue Wang
2020-04-25 10:56     ` [dpdk-dev] [PATCH v7 1/6] eal: add internal ABI tag definition Haiyue Wang
2020-04-25 10:56     ` [dpdk-dev] [PATCH v7 2/6] build: enable internal API tag Haiyue Wang
2020-04-25 10:56     ` [dpdk-dev] [PATCH v7 3/6] mk: add internal tag check Haiyue Wang
2020-04-25 14:34       ` David Marchand
2020-04-25 10:56     ` [dpdk-dev] [PATCH v7 4/6] devtools: ignore internal ABI check Haiyue Wang
2020-04-25 10:56     ` [dpdk-dev] [PATCH v7 5/6] devtools: exempt internal ABI checking Haiyue Wang
2020-04-25 14:34       ` David Marchand
2020-04-25 10:56     ` [dpdk-dev] [PATCH v7 6/6] devtools: enforce internal tag at the beginning Haiyue Wang
2020-04-25 14:39     ` [dpdk-dev] [PATCH v7 0/6] dpdk: introduce __rte_internal tag David Marchand
2020-04-25 16:34       ` Wang, Haiyue
2020-04-25 18:09       ` Wang, Haiyue
2020-04-29  8:22         ` David Marchand
2020-04-29  8:24           ` Wang, Haiyue

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200402113035.GA4063060@hmswarspite.think-freely.org \
    --to=nhorman@tuxdriver.com \
    --cc=akhil.goyal@nxp.com \
    --cc=bruce.richardson@intel.com \
    --cc=david.marchand@redhat.com \
    --cc=dev@dpdk.org \
    --cc=hemant.agrawal@nxp.com \
    --cc=jerinj@marvell.com \
    --cc=thomas@monjalon.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).