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From: Feifei Wang <Feifei.Wang2@arm.com>
To: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
	David Marchand <david.marchand@redhat.com>
Cc: Konstantin Ananyev <konstantin.ananyev@intel.com>,
	Gavin Hu <Gavin.Hu@arm.com>,
	Olivier Matz <olivier.matz@6wind.com>, dev <dev@dpdk.org>,
	nd <nd@arm.com>, dpdk stable <stable@dpdk.org>, nd <nd@arm.com>,
	nd <nd@arm.com>, nd <nd@arm.com>
Subject: [dpdk-stable] 回复: [dpdk-dev] [PATCH v1 2/2] test/ring: fix wrong param passed to the enqueue APIs
Date: Fri, 31 Jul 2020 06:25:47 +0000
Message-ID: <VI1PR08MB3023D0DCA6B2C2F2385DD6B5C84E0@VI1PR08MB3023.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <VI1PR08MB3023489F111A9429A06A1B49C8710@VI1PR08MB3023.eurprd08.prod.outlook.com>



> -----邮件原件-----
> 发件人: Feifei Wang
> 发送时间: 2020年7月30日 18:29
> 收件人: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>; David
> Marchand <david.marchand@redhat.com>
> 抄送: Konstantin Ananyev <konstantin.ananyev@intel.com>; Gavin Hu
> <Gavin.Hu@arm.com>; Olivier Matz <olivier.matz@6wind.com>; dev
> <dev@dpdk.org>; nd <nd@arm.com>; dpdk stable <stable@dpdk.org>; nd
> <nd@arm.com>; nd <nd@arm.com>
> 主题: 回复: [dpdk-dev] [PATCH v1 2/2] test/ring: fix wrong param passed to
> the enqueue APIs
> 
> 
> 
> > -----邮件原件-----
> > 发件人: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
> > 发送时间: 2020年7月30日 5:24
> > 收件人: Feifei Wang <Feifei.Wang2@arm.com>; David Marchand
> > <david.marchand@redhat.com>
> > 抄送: Konstantin Ananyev <konstantin.ananyev@intel.com>; Gavin Hu
> > <Gavin.Hu@arm.com>; Olivier Matz <olivier.matz@6wind.com>; dev
> > <dev@dpdk.org>; nd <nd@arm.com>; dpdk stable <stable@dpdk.org>;
> > Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>; nd
> <nd@arm.com>
> > 主题: RE: [dpdk-dev] [PATCH v1 2/2] test/ring: fix wrong param passed to
> > the enqueue APIs
> >
> > <snip>
> >
> > > >
> > > > On Wed, Jul 29, 2020 at 4:16 PM Feifei Wang <Feifei.Wang2@arm.com>
> > > > wrote:
> > > > > > Are we missing a check in the UT so that dequeued object is
> > > > > > what had been enqueued?
> > Yes, missing for single element enqueue/dequeue
> >
> > > > > >
> > > > > >
> > > > > Dequeue is not necessary to change because the param defined in
> > > > > rte_ring_dequeue is different from that in rte_ring_enqueue:
> > > > > rte_ring_enqueue(struct rte_ring *r, void *obj): obj is a
> > > > > pointer
> > > > > (object) to be added in the ring rte_ring_dequeue(struct
> > > > > rte_ring *r, void **obj_p): obj_p is a pointer to a void *
> > > > > pointer
> > > > > (object) that will be filled.
> > > >
> > > > That I get it.
> > > >
> > > > What I meant is that the test enqueues an object in a ring until
> > > > it is full [1], then dequeues all the ring [2].
> > > > 1: https://git.dpdk.org/dpdk/tree/app/test/test_ring.c#n814
> > > > 2: https://git.dpdk.org/dpdk/tree/app/test/test_ring.c#n825
> > > >
> > > > If the test had checked that dequeued objects are the right one,
> > > > we would have caught it.
> > > >
> > > > But on the other hand, maybe another part of the functionnal ring
> > > > tests already check this and we only need to fix this issue here.
> > >
> > > Sorry I just misunderstood you.
> > > 1. Actually, for the APIs of test_ring.h, we lack a test to check
> > > whether the value of object enqueued into the ring matches that
> > > dequeued
> > from the ring.
> > > But it is mainly used to measure the length of time from enqueue to
> > dequeue.
> > > So I'm not sure it is necessary.
> > > 2. For the APIs of rte_ring.h, some tests can be used to test
> > > whether the value of object enqueued into the ring matches that
> > > dequeued from the
> > ring.
> > > For example:
> > > $table_autotest
> > > $mbuf_autotest
> > The dequeued objects are checked against the enqueued objects for the
> > bulk and burst APIs. Look at tests test_ring_burst_bulk_tests1..4.
> > 'memcmp' is used to compare the enqueued objects against the dequeued
> ones.
> > Similar comparison can be added in test_ring_basic_ex,
> > test_ring_with_exact_size functions.
> Thank you for bringing that up.
Next, I will adding the test to check the value of dequeue against enqueue in
test_ring_basic_ex,  test_ring_with_exact_size functions. Furthermore, I will pack
it and the current patch together and upload the new version to the community. 
> >
> > > >
> > > >
> > > > --
> > > > David Marchand
> > >
> > > --
> > > Feifei
> > >


  reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200729063105.11299-1-feifei.wang2@arm.com>
2020-07-29  6:31 ` [dpdk-stable] [PATCH v1 1/2] ring: fix the misdescription of the param Feifei Wang
2020-07-29 15:59   ` [dpdk-stable] [dpdk-dev] " David Marchand
2020-07-29 16:24     ` Ananyev, Konstantin
2020-07-29 19:34       ` Honnappa Nagarahalli
2020-07-30 10:16     ` [dpdk-stable] 回复: " Feifei Wang
2020-07-31  5:26       ` [dpdk-stable] " Honnappa Nagarahalli
2020-07-29  6:31 ` [dpdk-stable] [PATCH v1 2/2] test/ring: fix wrong param passed to the enqueue APIs Feifei Wang
2020-07-29 13:48   ` [dpdk-stable] [dpdk-dev] " David Marchand
2020-07-29 14:16     ` [dpdk-stable] 回复: " Feifei Wang
2020-07-29 14:21       ` [dpdk-stable] " David Marchand
2020-07-29 15:03         ` [dpdk-stable] 回复: " Feifei Wang
2020-07-29 21:24           ` [dpdk-stable] " Honnappa Nagarahalli
2020-07-30 10:28             ` [dpdk-stable] 回复: " Feifei Wang
2020-07-31  6:25               ` Feifei Wang [this message]
     [not found] ` <20200805061421.13037-1-feifei.wang2@arm.com>
2020-08-05  6:14   ` [dpdk-stable] [PATCH v2 1/4] test/ring: fix wrong parameter " Feifei Wang
2020-08-05  6:14   ` [dpdk-stable] [PATCH v2 2/4] test/ring: fix wrong size used in memcmp Feifei Wang
2020-08-05  6:14   ` [dpdk-stable] [PATCH v2 3/4] test/ring: fix the wrong number of enq/deq elements Feifei Wang

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