DPDK patches and discussions
 help / color / mirror / Atom feed
From: Thomas Monjalon <thomas@monjalon.net>
To: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
	"Phil Yang (Arm Technology China)" <Phil.Yang@arm.com>
Cc: "jerinj@marvell.com" <jerinj@marvell.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
	"Gavin Hu (Arm Technology China)" <Gavin.Hu@arm.com>,
	nd <nd@arm.com>, "gage.eads@intel.com" <gage.eads@intel.com>
Subject: Re: [dpdk-dev] [PATCH v2 1/3] eal/arm64: add 128-bit atomic compare exchange
Date: Mon, 24 Jun 2019 18:25:49 +0200	[thread overview]
Message-ID: <22963143.DP9djbVQ2r@xps> (raw)
In-Reply-To: <VE1PR08MB51498692ECAC3E1081F61D3D98E00@VE1PR08MB5149.eurprd08.prod.outlook.com>

24/06/2019 18:12, Honnappa Nagarahalli:
> > > > +	} else {
> > > > +		rte_panic("Invalid memory order\n");
> > >
> > >
> > > rte_panic should be removed from library. In this case, I think,
> > > invalid mo can go for strongest barrier.
>
> It is added here to capture programming errors.
> Memory order can be passed during compilation or during run time.
> 'rte_panic' supports both of these.
> Adding code with strongest memory order will mask the programming error.

An error must return a specific code from the function.
rte_panic is really forbidden in libraries.
We are in the process of removing all of them.




  reply	other threads:[~2019-06-24 16:25 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-24  6:41 Jerin Jacob Kollanukkaran
2019-06-24 15:43 ` Phil Yang (Arm Technology China)
2019-06-24 16:12   ` Honnappa Nagarahalli
2019-06-24 16:25     ` Thomas Monjalon [this message]
2019-06-24 17:41       ` Honnappa Nagarahalli
2019-06-25  6:15         ` Jerin Jacob Kollanukkaran
2019-06-26 10:10           ` Phil Yang (Arm Technology China)
  -- strict thread matches above, loose matches on Subject: below --
2019-06-23  2:41 [dpdk-dev] [PATCH v1 " Phil Yang
2019-06-23  3:15 ` [dpdk-dev] [PATCH v2 " Phil Yang
2019-06-24 14:46   ` Eads, Gage
2019-06-24 15:35     ` Phil Yang (Arm Technology China)

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=22963143.DP9djbVQ2r@xps \
    --to=thomas@monjalon.net \
    --cc=Gavin.Hu@arm.com \
    --cc=Honnappa.Nagarahalli@arm.com \
    --cc=Phil.Yang@arm.com \
    --cc=dev@dpdk.org \
    --cc=gage.eads@intel.com \
    --cc=hemant.agrawal@nxp.com \
    --cc=jerinj@marvell.com \
    --cc=nd@arm.com \
    /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).