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From: Olivier Matz <olivier.matz@6wind.com>
To: Hemant Agrawal <hemant.agrawal@nxp.com>
Cc: dev@dpdk.org, jerin.jacob@caviumnetworks.com,
	santosh.shukla@caviumnetworks.com,
	Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Subject: Re: [dpdk-dev] [PATCH v3 2/7] eal: add API to set user default mbuf mempool ops
Date: Fri, 19 Jan 2018 13:43:51 +0100	[thread overview]
Message-ID: <20180119124351.e2fy6hjipjjxrwme@platinum> (raw)
In-Reply-To: <dab7fea6-46b4-a483-a51a-c407dd3377d0@nxp.com>

On Fri, Jan 19, 2018 at 06:01:55PM +0530, Hemant Agrawal wrote:
> Hi Olivier,
> 
> On 1/19/2018 3:31 PM, Olivier Matz wrote:
> > On Thu, Jan 18, 2018 at 06:56:27PM +0530, Hemant Agrawal wrote:
> > > Add new API to set the user defined mbuf mempool ops name
> > > i.e. set the provided ops name to `internal_config.mbuf_pool_ops_name`.
> > > 
> > > Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
> > > Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> > > ---
> > >  lib/librte_eal/bsdapp/eal/eal.c         | 6 ++++++
> > >  lib/librte_eal/common/include/rte_eal.h | 9 +++++++++
> > >  lib/librte_eal/linuxapp/eal/eal.c       | 6 ++++++
> > >  lib/librte_eal/rte_eal_version.map      | 1 +
> > >  4 files changed, 22 insertions(+)
> > > 
> > > diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
> > > index c602d02..64f010a 100644
> > > --- a/lib/librte_eal/bsdapp/eal/eal.c
> > > +++ b/lib/librte_eal/bsdapp/eal/eal.c
> > > @@ -117,6 +117,12 @@ rte_eal_mbuf_default_mempool_ops(void)
> > >  	return internal_config.user_mbuf_pool_ops_name;
> > >  }
> > > 
> > > +void
> > > +rte_eal_set_mbuf_user_mempool_ops(const char *ops_name)
> > > +{
> > > +	internal_config.user_mbuf_pool_ops_name = ops_name;
> > > +}
> > > +
> > 
> > I think we should only have the "set" API in mbuf lib.
> > 
> > What do you think about what I suggested in
> > http://dpdk.org/ml/archives/dev/2018-January/087419.html ?
> > 
> > """
> > The proper way is maybe to keep the parsing in eal, and at librte_mbuf
> > initialization, query the eal library to get the user pool if any.
> > After that, all will be managed inside librte_mbuf. So the eal lib will
> > only do the argument parsing.
> > """
> > 
> 
> Will you please help me in understanding, how should I do it?
> 
> 1. The is no standard librte_mbuf initialization routine. RTE_INIT will not
> work, as it will be executed before eal_init. dlopen is for shared lib only.
> Is there any other method?
> 
> 2. If I call it on the very first call of rte_mbuf_user_mempool_ops_name or
> rte_mbuf_set_user_mempool_ops_name, I will be checking against NULL. It can
> be NULL always. So, no real meaning of maintaining it in librte_mbuf as
> well.
> Yes, I can maintain a flag to know, If I have synced with eal parse before.
> But that is not sounding to me clean.

My initial idea was to do it at init, but I came to the same conclusion
than yours, it is not possible.

Can you take a look to the comments of patch 3/7 and let me know if the
proposition fits your needs?

  reply	other threads:[~2018-01-19 12:43 UTC|newest]

Thread overview: 112+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-04 12:22 [dpdk-dev] [PATCH 0/2] Multiple Pktmbuf mempool support Hemant Agrawal
2017-07-04 12:22 ` [dpdk-dev] [PATCH 1/2] mempool: check the support for the given mempool Hemant Agrawal
2017-07-04 12:22 ` [dpdk-dev] [PATCH 2/2] mbuf: add support for preferred mempool list Hemant Agrawal
2017-09-22  7:13 ` [dpdk-dev] [PATCH 0/2] Multiple Pktmbuf mempool support Hemant Agrawal
2017-09-25 10:24   ` Olivier MATZ
2017-10-10 14:15     ` Thomas Monjalon
2017-10-10 14:21       ` Hemant Agrawal
2017-12-15 10:24 ` [dpdk-dev] [PATCH 0/2] Dynamic HW Mempool Detection Support Hemant Agrawal
2017-12-15 10:24   ` [dpdk-dev] [PATCH 1/2] mbuf: update default Mempool ops with HW active pool Hemant Agrawal
2017-12-15 15:52     ` Stephen Hemminger
2017-12-18  9:26       ` Hemant Agrawal
2017-12-18  8:55     ` Jerin Jacob
2017-12-18  9:36       ` Hemant Agrawal
2017-12-22 14:59         ` Olivier MATZ
2017-12-28 12:07           ` Hemant Agrawal
2018-01-10 12:49             ` Hemant Agrawal
2017-12-22 14:41     ` Olivier MATZ
2017-12-15 10:24   ` [dpdk-dev] [PATCH 2/2] dpaa2: register dpaa2 mempool ops as active mempool Hemant Agrawal
2017-12-18  8:57     ` Jerin Jacob
2017-12-18  9:25       ` Hemant Agrawal
2018-01-15  6:11   ` [dpdk-dev] [PATCH v2 0/5] Dynamic HW Mempool Detection Support Hemant Agrawal
2018-01-15  6:11     ` [dpdk-dev] [PATCH v2 1/5] eal: prefix mbuf pool ops name with user defined Hemant Agrawal
2018-01-15  6:11     ` [dpdk-dev] [PATCH v2 2/5] eal: add platform mempool ops name in internal config Hemant Agrawal
2018-01-15 12:24       ` Jerin Jacob
2018-01-15 14:31         ` Hemant Agrawal
2018-01-15 16:26           ` Jerin Jacob
2018-01-16 15:04             ` Olivier Matz
2018-01-16 15:08               ` Jerin Jacob
2018-01-15  6:11     ` [dpdk-dev] [PATCH v2 3/5] mbuf: support register mempool Hw ops name APIs Hemant Agrawal
2018-01-15 11:41       ` Jerin Jacob
2018-01-15 14:24         ` Hemant Agrawal
2018-01-15 14:37           ` Jerin Jacob
2018-01-15 12:36       ` Jerin Jacob
2018-01-16 15:09       ` Olivier Matz
2018-01-15  6:11     ` [dpdk-dev] [PATCH v2 4/5] mbuf: pktmbuf pool create helper for specific mempool ops Hemant Agrawal
2018-01-15 12:31       ` Jerin Jacob
2018-01-15 14:32         ` Hemant Agrawal
2018-01-15  6:11     ` [dpdk-dev] [PATCH v2 5/5] mbuf: add user command line config mempools ops API Hemant Agrawal
2018-01-15 12:29       ` Jerin Jacob
2018-01-15 14:35         ` Hemant Agrawal
2018-01-15 16:23           ` Jerin Jacob
2018-01-16 15:01     ` [dpdk-dev] [PATCH v2 0/5] Dynamic HW Mempool Detection Support Olivier Matz
2018-01-18 11:47       ` Hemant Agrawal
2018-01-18 13:42         ` Olivier Matz
2018-01-18 13:26     ` [dpdk-dev] [PATCH v3 0/7] " Hemant Agrawal
2018-01-18 13:26       ` [dpdk-dev] [PATCH v3 1/7] eal: prefix mbuf pool ops name with user defined Hemant Agrawal
2018-01-19 10:01         ` Olivier Matz
2018-01-18 13:26       ` [dpdk-dev] [PATCH v3 2/7] eal: add API to set user default mbuf mempool ops Hemant Agrawal
2018-01-19 10:01         ` Olivier Matz
2018-01-19 12:31           ` Hemant Agrawal
2018-01-19 12:43             ` Olivier Matz [this message]
2018-01-18 13:26       ` [dpdk-dev] [PATCH v3 3/7] mbuf: add pool ops name selection API helpers Hemant Agrawal
2018-01-19 10:01         ` Olivier Matz
2018-01-19 12:41           ` Hemant Agrawal
2018-01-19 13:10             ` Olivier Matz
2018-01-18 13:26       ` [dpdk-dev] [PATCH v3 4/7] mbuf: pktmbuf pool create helper for specific mempool ops Hemant Agrawal
2018-01-18 13:26       ` [dpdk-dev] [PATCH v3 5/7] app/testpmd: set preferred mempool as default pktpool Hemant Agrawal
2018-01-19 10:01         ` Olivier Matz
2018-01-18 13:26       ` [dpdk-dev] [PATCH v3 6/7] dpaa2: register dpaa2 as platform HW mempool on runtime Hemant Agrawal
2018-01-18 13:26       ` [dpdk-dev] [PATCH v3 7/7] dpaa: register dpaa " Hemant Agrawal
2018-01-19 16:33       ` [dpdk-dev] [PATCH v4 0/7] Dynamic HW Mempool Detection Support Hemant Agrawal
2018-01-19 16:33         ` [dpdk-dev] [PATCH v4 1/7] eal: prefix mbuf pool ops name with user defined Hemant Agrawal
2018-01-19 16:33         ` [dpdk-dev] [PATCH v4 2/7] mbuf: maintain user and compile time mempool ops name Hemant Agrawal
2018-01-19 16:33         ` [dpdk-dev] [PATCH v4 3/7] mbuf: add pool ops name selection API helpers Hemant Agrawal
2018-01-19 16:33         ` [dpdk-dev] [PATCH v4 4/7] mbuf: pktmbuf pool create helper for specific mempool ops Hemant Agrawal
2018-01-19 16:33         ` [dpdk-dev] [PATCH v4 5/7] app/testpmd: set preferred mempool as default pktpool Hemant Agrawal
2018-01-19 16:33         ` [dpdk-dev] [PATCH v4 6/7] dpaa: register dpaa as platform HW mempool on runtime Hemant Agrawal
2018-01-19 16:33         ` [dpdk-dev] [PATCH v4 7/7] dpaa2: register dpaa2 " Hemant Agrawal
2018-01-20  6:15         ` [dpdk-dev] [PATCH v5 0/7] Dynamic HW Mempool Detection Support Hemant Agrawal
2018-01-20  6:15           ` [dpdk-dev] [PATCH v5 1/7] eal: prefix mbuf pool ops name with user defined Hemant Agrawal
2018-01-22 13:23             ` Olivier Matz
2018-01-22 13:24             ` Hemant Agrawal
2018-01-20  6:15           ` [dpdk-dev] [PATCH v5 2/7] mbuf: maintain user and compile time mempool ops name Hemant Agrawal
2018-01-22 13:23             ` Olivier Matz
2018-01-20  6:15           ` [dpdk-dev] [PATCH v5 3/7] mbuf: add pool ops name selection API helpers Hemant Agrawal
2018-01-22 13:23             ` Olivier Matz
2018-01-20  6:15           ` [dpdk-dev] [PATCH v5 4/7] mbuf: pktmbuf pool create helper for specific mempool ops Hemant Agrawal
2018-01-22 13:24             ` Olivier Matz
2018-01-20  6:15           ` [dpdk-dev] [PATCH v5 5/7] app/testpmd: set preferred mempool as default pktpool Hemant Agrawal
2018-01-22 13:25             ` Olivier Matz
2018-01-20  6:15           ` [dpdk-dev] [PATCH v5 6/7] dpaa: register dpaa as platform HW mempool on runtime Hemant Agrawal
2018-01-20  6:15           ` [dpdk-dev] [PATCH v5 7/7] dpaa2: register dpaa2 " Hemant Agrawal
2018-01-22 13:51           ` [dpdk-dev] [PATCH v6 0/7] Dynamic HW Mempool Detection Support Hemant Agrawal
2018-01-22 13:51             ` [dpdk-dev] [PATCH v6 1/7] eal: prefix mbuf pool ops name with user defined Hemant Agrawal
2018-01-22 14:43               ` santosh
2018-01-22 13:51             ` [dpdk-dev] [PATCH v6 2/7] mbuf: maintain user and compile time mempool ops name Hemant Agrawal
2018-01-22 14:47               ` santosh
2018-01-25 22:02               ` Thomas Monjalon
2018-01-26  5:10                 ` Hemant Agrawal
2018-01-22 13:51             ` [dpdk-dev] [PATCH v6 3/7] mbuf: add pool ops name selection API helpers Hemant Agrawal
2018-01-22 14:49               ` santosh
2018-01-25 22:01               ` Thomas Monjalon
2018-01-26  5:10                 ` Hemant Agrawal
2018-01-22 13:51             ` [dpdk-dev] [PATCH v6 4/7] mbuf: pktmbuf pool create helper for specific mempool ops Hemant Agrawal
2018-01-22 14:51               ` santosh
2018-01-22 13:51             ` [dpdk-dev] [PATCH v6 5/7] app/testpmd: set preferred mempool as default pktpool Hemant Agrawal
2018-01-22 14:52               ` santosh
2018-01-25 22:04               ` Thomas Monjalon
2018-01-26  5:11                 ` Hemant Agrawal
2018-01-26  7:43                   ` Thomas Monjalon
2018-01-22 13:51             ` [dpdk-dev] [PATCH v6 6/7] dpaa: register dpaa as platform HW mempool on runtime Hemant Agrawal
2018-01-22 13:51             ` [dpdk-dev] [PATCH v6 7/7] dpaa2: register dpaa2 " Hemant Agrawal
2018-01-29  8:10             ` [dpdk-dev] [PATCH v7 0/7] Dynamic HW Mempool Detection Support Hemant Agrawal
2018-01-29  8:10               ` [dpdk-dev] [PATCH v7 1/7] eal: prefix mbuf pool ops name with user defined Hemant Agrawal
2018-01-29  8:10               ` [dpdk-dev] [PATCH v7 2/7] mbuf: maintain user and compile time mempool ops name Hemant Agrawal
2018-01-29  8:10               ` [dpdk-dev] [PATCH v7 3/7] mbuf: add pool ops name selection API helpers Hemant Agrawal
2018-01-29  8:44                 ` Andrew Rybchenko
2018-01-29  8:10               ` [dpdk-dev] [PATCH v7 4/7] mbuf: pktmbuf pool create helper for specific mempool ops Hemant Agrawal
2018-01-29  8:10               ` [dpdk-dev] [PATCH v7 5/7] app/testpmd: add debug to print preferred " Hemant Agrawal
2018-01-29  8:10               ` [dpdk-dev] [PATCH v7 6/7] dpaa: register dpaa as platform HW mempool on runtime Hemant Agrawal
2018-01-29  8:10               ` [dpdk-dev] [PATCH v7 7/7] dpaa2: register dpaa2 " Hemant Agrawal
2018-01-29 18:03               ` [dpdk-dev] [PATCH v7 0/7] Dynamic HW Mempool Detection Support Thomas Monjalon

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