From: Neil Horman <nhorman@tuxdriver.com>
To: "Wiles, Roger Keith" <keith.wiles@windriver.com>
Cc: "<dev@dpdk.org>" <dev@dpdk.org>
Subject: Re: [dpdk-dev] Bulk dequeue of packets and the returned values, question
Date: Sun, 28 Sep 2014 16:44:01 -0400 [thread overview]
Message-ID: <20140928204401.GB4012@localhost.localdomain> (raw)
In-Reply-To: <F1520FAF-173B-44AA-8A2F-131520089EC1@windriver.com>
On Sun, Sep 28, 2014 at 06:04:42PM +0000, Wiles, Roger Keith wrote:
> I am also looking at the bulk dequeue routines, which the ring can be fixed or variable. On fixed < 0 on error is returned and 0 if successful. On a variable ring < 0 on error or n on success, but I think n can be zero in the variable case, correct?
>
Yes, that seems right.
> If these are true then why not have the routines return < 0 on error and >= 0 on success. Which means a dequeue from a fixed ring would return only ’requested size n’ or < 0 if you error off the 0 case. The 0 case could be OK, if you allow zero to be return on a empty ring for the fixed ring case.
>
> Does this make sense to anyone?
>
I agree, I don't see why the behavior is bifurcated the way it is, its
nonsensical.
Neil
> Thanks
> ++Keith
>
> Keith Wiles, Principal Technologist with CTO office, Wind River mobile 972-213-5533
>
>
next prev parent reply other threads:[~2014-09-28 20:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-28 18:04 Wiles, Roger Keith
2014-09-28 20:44 ` Neil Horman [this message]
2014-09-28 22:23 ` Venkatesan, Venky
2014-09-28 22:36 ` Neil Horman
2014-09-28 23:06 ` Wiles, Roger Keith
2014-09-29 12:10 ` Bruce Richardson
2014-09-29 12:26 ` Neil Horman
2014-09-29 12:30 ` Ananyev, Konstantin
2014-09-29 14:57 ` Wiles, Roger Keith
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