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From: Olivier Matz <olivier.matz@6wind.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: jerin.jacob@caviumnetworks.com, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2 07/14] ring: make bulk and burst fn return vals consistent
Date: Tue, 14 Mar 2017 09:56:35 +0100	[thread overview]
Message-ID: <20170314095635.2a5e6c8b@platinum> (raw)
In-Reply-To: <20170308120842.GB286404@bricha3-MOBL3.ger.corp.intel.com>

On Wed, 8 Mar 2017 12:08:42 +0000, Bruce Richardson <bruce.richardson@intel.com> wrote:
> On Wed, Mar 08, 2017 at 11:22:40AM +0100, Olivier MATZ wrote:
> > On Tue,  7 Mar 2017 11:32:10 +0000, Bruce Richardson <bruce.richardson@intel.com> wrote:  
> > > The bulk fns for rings returns 0 for all elements enqueued and negative
> > > for no space. Change that to make them consistent with the burst functions
> > > in returning the number of elements enqueued/dequeued, i.e. 0 or N.
> > > This change also allows the return value from enq/deq to be used directly
> > > without a branch for error checking.
> > > 
> > > Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>  
> > 
> > [...]
> >   
> > > @@ -716,7 +695,7 @@ rte_ring_enqueue_bulk(struct rte_ring *r, void * const *obj_table,
> > >  static inline int __attribute__((always_inline))
> > >  rte_ring_mp_enqueue(struct rte_ring *r, void *obj)
> > >  {
> > > -	return rte_ring_mp_enqueue_bulk(r, &obj, 1);
> > > +	return rte_ring_mp_enqueue_bulk(r, &obj, 1) ? 0 : -ENOBUFS;
> > >  }
> > >  
> > >  /**  
> > 
> > I'm wondering if these functions (enqueue/dequeue of one element) should
> > be modified to return 0 (fail) or 1 (success) too, for consistency with
> > the bulk functions.
> > 
> > Any opinion?
> >   
> I thought about that, but I would view it as risky, unless we want to go
> changing the parameters to the function also, as the compiler won't flag
> a change in return value like that.
> 

Ok, I have no better solution anyway.

Olivier

  reply	other threads:[~2017-03-14  8:56 UTC|newest]

Thread overview: 116+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-23 17:23 [dpdk-dev] [PATCH v1 00/14] refactor and cleanup of rte_ring Bruce Richardson
2017-02-23 17:23 ` [dpdk-dev] [PATCH v1 01/14] ring: remove split cacheline build setting Bruce Richardson
2017-02-28 11:35   ` Jerin Jacob
2017-02-28 11:57     ` Bruce Richardson
2017-02-28 12:08       ` Jerin Jacob
2017-02-28 13:52         ` Bruce Richardson
2017-02-28 17:54           ` Jerin Jacob
2017-03-01  9:47             ` Bruce Richardson
2017-03-01 10:17               ` Olivier Matz
2017-03-01 10:42                 ` Bruce Richardson
2017-03-01 11:06                   ` Olivier Matz
2017-03-01 11:19                     ` Jerin Jacob
2017-03-01 12:12                       ` Bruce Richardson
2017-02-23 17:23 ` [dpdk-dev] [PATCH v1 02/14] ring: create common structure for prod and cons metadata Bruce Richardson
2017-03-01 10:22   ` Olivier Matz
2017-03-01 10:33     ` Bruce Richardson
2017-02-23 17:23 ` [dpdk-dev] [PATCH v1 03/14] ring: eliminate duplication of size and mask fields Bruce Richardson
2017-02-23 17:23 ` [dpdk-dev] [PATCH v1 04/14] ring: remove debug setting Bruce Richardson
2017-02-23 17:23 ` [dpdk-dev] [PATCH v1 05/14] ring: remove the yield when waiting for tail update Bruce Richardson
2017-02-23 17:23 ` [dpdk-dev] [PATCH v1 06/14] ring: remove watermark support Bruce Richardson
2017-03-01 10:34   ` Olivier Matz
2017-03-01 10:43     ` Bruce Richardson
2017-02-23 17:24 ` [dpdk-dev] [PATCH v1 07/14] ring: make bulk and burst fn return vals consistent Bruce Richardson
2017-02-23 17:24 ` [dpdk-dev] [PATCH v1 08/14] ring: allow enqueue fns to return free space value Bruce Richardson
2017-02-23 17:24 ` [dpdk-dev] [PATCH v1 09/14] ring: allow dequeue fns to return remaining entry count Bruce Richardson
2017-02-23 17:24 ` [dpdk-dev] [PATCH v1 10/14] examples/quota_watermark: use ring space for watermarks Bruce Richardson
2017-02-23 17:24 ` [dpdk-dev] [PATCH v1 11/14] ring: reduce scope of local variables Bruce Richardson
2017-02-23 17:24 ` [dpdk-dev] [PATCH v1 12/14] ring: separate out head index manipulation for enq/deq Bruce Richardson
2017-03-08 10:49   ` Olivier MATZ
2017-03-08 12:06     ` Bruce Richardson
2017-03-14  8:56       ` Olivier Matz
2017-02-23 17:24 ` [dpdk-dev] [PATCH v1 13/14] ring: create common function for updating tail idx Bruce Richardson
2017-02-23 17:24 ` [dpdk-dev] [PATCH v1 14/14] ring: make ring struct and enq/deq macros type agnostic Bruce Richardson
2017-03-07 11:32 ` [dpdk-dev] [PATCH v2 00/14] refactor and cleanup of rte_ring Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 01/14] ring: remove split cacheline build setting Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 02/14] ring: create common structure for prod and cons metadata Bruce Richardson
2017-03-15 14:01     ` Thomas Monjalon
2017-03-22 16:38       ` Bruce Richardson
2017-03-24 14:55       ` Bruce Richardson
2017-03-24 16:41         ` Olivier Matz
2017-03-24 16:57           ` Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 03/14] ring: eliminate duplication of size and mask fields Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 04/14] ring: remove debug setting Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 05/14] ring: remove the yield when waiting for tail update Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 06/14] ring: remove watermark support Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 07/14] ring: make bulk and burst fn return vals consistent Bruce Richardson
2017-03-08 10:22     ` Olivier MATZ
2017-03-08 12:08       ` Bruce Richardson
2017-03-14  8:56         ` Olivier Matz [this message]
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 08/14] ring: allow enqueue fns to return free space value Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 09/14] ring: allow dequeue fns to return remaining entry count Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 10/14] examples/quota_watermark: use ring space for watermarks Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 11/14] ring: reduce scope of local variables Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 12/14] ring: separate out head index manipulation for enq/deq Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 13/14] ring: create common function for updating tail idx Bruce Richardson
2017-03-07 11:32   ` [dpdk-dev] [PATCH v2 14/14] ring: make ring struct and enq/deq macros type agnostic Bruce Richardson
2017-03-14  8:59   ` [dpdk-dev] [PATCH v2 00/14] refactor and cleanup of rte_ring Olivier Matz
2017-03-24 17:09   ` [dpdk-dev] [PATCH v3 " Bruce Richardson
2017-03-24 17:09     ` [dpdk-dev] [PATCH v3 01/14] ring: remove split cacheline build setting Bruce Richardson
2017-03-24 17:09     ` [dpdk-dev] [PATCH v3 02/14] ring: create common structure for prod and cons metadata Bruce Richardson
2017-03-27  7:20       ` Olivier Matz
2017-03-24 17:09     ` [dpdk-dev] [PATCH v3 03/14] ring: eliminate duplication of size and mask fields Bruce Richardson
2017-03-27  9:52       ` Thomas Monjalon
2017-03-27 10:13         ` Bruce Richardson
2017-03-27 10:15         ` Bruce Richardson
2017-03-27 13:13           ` Thomas Monjalon
2017-03-27 14:57             ` Bruce Richardson
2017-03-24 17:09     ` [dpdk-dev] [PATCH v3 04/14] ring: remove debug setting Bruce Richardson
2017-03-24 17:09     ` [dpdk-dev] [PATCH v3 05/14] ring: remove the yield when waiting for tail update Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 06/14] ring: remove watermark support Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 07/14] ring: make bulk and burst fn return vals consistent Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 08/14] ring: allow enqueue fns to return free space value Bruce Richardson
2017-03-28  7:12       ` Thomas Monjalon
2017-03-28  8:16         ` Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 09/14] ring: allow dequeue fns to return remaining entry count Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 10/14] examples/quota_watermark: use ring space for watermarks Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 11/14] ring: reduce scope of local variables Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 12/14] ring: separate out head index manipulation for enq/deq Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 13/14] ring: create common function for updating tail idx Bruce Richardson
2017-03-24 17:10     ` [dpdk-dev] [PATCH v3 14/14] ring: make ring struct and enq/deq macros type agnostic Bruce Richardson
2017-03-28 20:35     ` [dpdk-dev] [PATCH v4 00/14] refactor and cleanup of rte_ring Bruce Richardson
2017-03-28 20:35       ` [dpdk-dev] [PATCH v4 01/14] ring: remove split cacheline build setting Bruce Richardson
2017-03-28 20:35       ` [dpdk-dev] [PATCH v4 02/14] ring: create common structure for prod and cons metadata Bruce Richardson
2017-03-28 20:35       ` [dpdk-dev] [PATCH v4 03/14] ring: eliminate duplication of size and mask fields Bruce Richardson
2017-03-28 20:35       ` [dpdk-dev] [PATCH v4 04/14] ring: remove debug setting Bruce Richardson
2017-03-28 20:35       ` [dpdk-dev] [PATCH v4 05/14] ring: remove the yield when waiting for tail update Bruce Richardson
2017-03-28 20:35       ` [dpdk-dev] [PATCH v4 06/14] ring: remove watermark support Bruce Richardson
2017-03-28 20:35       ` [dpdk-dev] [PATCH v4 07/14] ring: make bulk and burst fn return vals consistent Bruce Richardson
2017-03-28 20:36       ` [dpdk-dev] [PATCH v4 08/14] ring: allow enqueue fns to return free space value Bruce Richardson
2017-03-28 20:36       ` [dpdk-dev] [PATCH v4 09/14] ring: allow dequeue fns to return remaining entry count Bruce Richardson
2017-03-28 20:36       ` [dpdk-dev] [PATCH v4 10/14] examples/quota_watermark: use ring space for watermarks Bruce Richardson
2017-03-28 20:36       ` [dpdk-dev] [PATCH v4 11/14] ring: reduce scope of local variables Bruce Richardson
2017-03-28 20:36       ` [dpdk-dev] [PATCH v4 12/14] ring: separate out head index manipulation for enq/deq Bruce Richardson
2017-03-28 20:36       ` [dpdk-dev] [PATCH v4 13/14] ring: create common function for updating tail idx Bruce Richardson
2017-03-28 20:36       ` [dpdk-dev] [PATCH v4 14/14] ring: make ring struct and enq/deq macros type agnostic Bruce Richardson
2017-03-29  2:47       ` [dpdk-dev] [PATCH v4 00/14] refactor and cleanup of rte_ring Yuanhan Liu
2017-03-29 13:09       ` [dpdk-dev] [PATCH v5 " Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 01/14] ring: remove split cacheline build setting Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 02/14] ring: create common structure for prod and cons metadata Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 03/14] ring: eliminate duplication of size and mask fields Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 04/14] ring: remove debug setting Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 05/14] ring: remove the yield when waiting for tail update Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 06/14] ring: remove watermark support Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 07/14] ring: make bulk and burst fn return vals consistent Bruce Richardson
2017-04-13  6:42           ` Wang, Zhihong
2017-04-13  8:33             ` Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 08/14] ring: allow enqueue fns to return free space value Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 09/14] ring: allow dequeue fns to return remaining entry count Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 10/14] examples/quota_watermark: use ring space for watermarks Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 11/14] ring: reduce scope of local variables Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 12/14] ring: separate out head index manipulation for enq/deq Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 13/14] ring: create common function for updating tail idx Bruce Richardson
2017-03-29 13:09         ` [dpdk-dev] [PATCH v5 14/14] ring: make ring struct and enq/deq macros type agnostic Bruce Richardson
2017-03-29 20:33         ` [dpdk-dev] [PATCH v5 00/14] refactor and cleanup of rte_ring Thomas Monjalon
2017-03-31 14:37         ` Ferruh Yigit
2017-04-03 17:55           ` Thomas Monjalon

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