From: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
To: Santosh Shukla <santosh.shukla@caviumnetworks.com>,
olivier.matz@6wind.com, dev@dpdk.org
Cc: thomas@monjalon.net, jerin.jacob@caviumnetworks.com,
hemant.agrawal@nxp.com
Subject: Re: [dpdk-dev] [PATCH v3 0/2] Dynamically configure mempool handle
Date: Mon, 4 Sep 2017 10:41:56 +0100 [thread overview]
Message-ID: <5724dc82-952a-8ca5-2f99-f463a54ec07d@intel.com> (raw)
In-Reply-To: <20170815080717.9413-1-santosh.shukla@caviumnetworks.com>
On 15/08/2017 09:07, Santosh Shukla wrote:
> v3:
> - Rebased on top of v17.11-rc0
> - Updated version.map entry to v17.11.
>
> v2:
>
> DPDK has support for hw and sw mempool. Those mempool
> can work optimal for specific PMD's.
> Example:
> sw ring based PMD for Intel NICs.
> HW mempool manager dpaa2 for dpaa2 PMD.
> HW mempool manager fpa for octeontx PMD.
>
> There could be a use-case where different vendor NIC's used
> on the same platform and User like to configure mempool in such a way that
> each of those NIC's should use their preferred mempool(For performance reasons).
>
> Current mempool infrastrucure don't support such use-case.
>
> This patchset tries to address that problem in 2 steps:
>
> 0) Allowing user to dynamically configure mempool handle by
> passing pool handle as eal arg to `--mbuf-pool-ops=<pool-handle>`.
>
> 1) Allowing PMD's to advertise their preferred pool to an application.
> From an application point of view:
> - The application must ask PMD about their preferred pool.
> - PMD to respond back with preferred pool otherwise
> CONFIG_RTE_MEMPOOL_DEFAULT_OPS will be used for that PMD.
>
> * Application programming sequencing would be
> char pref_mempool[RTE_MEMPOOL_OPS_NAMESIZE];
> rte_eth_dev_get_preferred_pool_ops(ethdev_port_id, pref_mempool /* out */);
> rte_mempool_create_empty();
> rte_mempool_set_ops_byname( , pref_memppol, );
> rte_mempool_populate_default();
What about introducing an API like:
rte_pktmbuf_poll_create_with_ops (..., ops_name, config_pool);
I think that API would help for the case the application wants an mbuf
pool with ie. stack handler.
Sure we can do the empty/set_ops/populate sequence, but the only thing
we want to change from default pktmbuf_pool_create API is the pool handler.
Application just needs to decide the ops handler to use, either default
or one suggested by PMD?
I think ideally we would have similar APIs:
- rte_mempool_create_with_ops (...)
- rte_memppol_xmem_create_with_ops (...)
Thanks,
Sergio
> Change History:
> v2 --> v3:
> - Changed version.map from DPDK_17.08 to DPDK_17.11.
>
> v1 --> v2:
> - Renamed rte_eal_get_mempool_name to rte_eal_mbuf_default_mempool_ops().
> (suggested by Olivier)
> - Renamed _get_preferred_pool to _get_preferred_pool_ops().
> - Updated API description and changes return val from -EINVAL to -ENOTSUP.
> (Suggested by Olivier)
> * Specific details on v1-->v2 change summary described in each patch.
>
> Checkpatch status:
> - None.
>
> Work History:
> * Refer [1] for v1.
>
> Thanks.
>
> [1] http://dpdk.org/ml/archives/dev/2017-June/067022.html
>
>
> Santosh Shukla (2):
> eal: allow user to override default pool handle
> ethdev: allow pmd to advertise pool handle
>
> lib/librte_eal/bsdapp/eal/eal.c | 17 +++++++++++++++++
> lib/librte_eal/bsdapp/eal/rte_eal_version.map | 7 +++++++
> lib/librte_eal/common/eal_common_options.c | 5 +++++
> lib/librte_eal/common/eal_internal_cfg.h | 1 +
> lib/librte_eal/common/eal_options.h | 2 ++
> lib/librte_eal/common/include/rte_eal.h | 11 +++++++++++
> lib/librte_eal/linuxapp/eal/eal.c | 18 ++++++++++++++++++
> lib/librte_eal/linuxapp/eal/rte_eal_version.map | 7 +++++++
> lib/librte_ether/rte_ethdev.c | 18 ++++++++++++++++++
> lib/librte_ether/rte_ethdev.h | 21 +++++++++++++++++++++
> lib/librte_ether/rte_ether_version.map | 7 +++++++
> lib/librte_mbuf/rte_mbuf.c | 5 +++--
> 12 files changed, 117 insertions(+), 2 deletions(-)
>
next prev parent reply other threads:[~2017-09-04 9:42 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-01 8:05 [dpdk-dev] [PATCH 0/2] Allow application set " Santosh Shukla
2017-06-01 8:05 ` [dpdk-dev] [PATCH 1/2] eal: Introducing option to " Santosh Shukla
2017-06-30 14:12 ` Olivier Matz
2017-07-04 12:33 ` santosh
2017-06-01 8:05 ` [dpdk-dev] [PATCH 2/2] ether/ethdev: Allow pmd to advertise preferred pool capability Santosh Shukla
2017-06-30 14:13 ` Olivier Matz
2017-07-04 12:39 ` santosh
2017-07-04 13:07 ` Olivier Matz
2017-07-04 14:12 ` Jerin Jacob
2017-06-19 11:52 ` [dpdk-dev] [PATCH 0/2] Allow application set mempool handle Hemant Agrawal
2017-06-19 13:01 ` Jerin Jacob
2017-06-20 10:37 ` Hemant Agrawal
2017-06-20 14:04 ` Jerin Jacob
2017-06-30 14:12 ` Olivier Matz
2017-07-04 12:25 ` santosh
2017-07-04 15:59 ` Olivier Matz
2017-07-05 7:48 ` santosh
2017-07-20 7:06 ` [dpdk-dev] [PATCH v2 0/2] Dynamically configure " Santosh Shukla
2017-07-20 7:06 ` [dpdk-dev] [PATCH v2 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-08-15 8:07 ` [dpdk-dev] [PATCH v3 0/2] Dynamically configure mempool handle Santosh Shukla
2017-08-15 8:07 ` [dpdk-dev] [PATCH v3 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-09-04 11:46 ` Olivier MATZ
2017-09-07 9:25 ` Hemant Agrawal
2017-08-15 8:07 ` [dpdk-dev] [PATCH v3 2/2] ethdev: allow pmd to advertise " Santosh Shukla
2017-09-04 12:11 ` Olivier MATZ
2017-09-04 13:14 ` santosh
2017-09-07 9:21 ` Hemant Agrawal
2017-09-07 10:06 ` santosh
2017-09-07 10:11 ` santosh
2017-09-07 11:08 ` Hemant Agrawal
2017-09-11 9:33 ` Olivier MATZ
2017-09-11 12:40 ` santosh
2017-09-11 13:00 ` Olivier MATZ
2017-09-04 9:41 ` Sergio Gonzalez Monroy [this message]
2017-09-04 13:20 ` [dpdk-dev] [PATCH v3 0/2] Dynamically configure mempool handle santosh
2017-09-04 13:34 ` Olivier MATZ
2017-09-04 14:24 ` Sergio Gonzalez Monroy
2017-09-05 7:47 ` Olivier MATZ
2017-09-05 8:11 ` Jerin Jacob
2017-09-11 15:18 ` [dpdk-dev] [PATCH v4 " Santosh Shukla
2017-09-11 15:18 ` [dpdk-dev] [PATCH v4 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-09-25 7:28 ` Olivier MATZ
2017-09-25 21:23 ` santosh
2017-09-11 15:18 ` [dpdk-dev] [PATCH v4 2/2] ethdev: get the supported pools for a port Santosh Shukla
2017-09-25 7:37 ` Olivier MATZ
2017-09-25 21:52 ` santosh
2017-09-29 5:00 ` santosh
2017-09-29 8:32 ` Olivier MATZ
2017-09-29 10:16 ` santosh
2017-09-29 11:21 ` santosh
2017-09-29 11:23 ` Olivier MATZ
2017-09-29 11:31 ` santosh
2017-09-13 10:00 ` [dpdk-dev] [PATCH v4 0/2] Dynamically configure mempool handle santosh
2017-09-19 8:28 ` santosh
2017-09-25 7:24 ` Olivier MATZ
2017-09-25 21:58 ` santosh
2017-10-01 9:14 ` [dpdk-dev] [PATCH v5 " Santosh Shukla
2017-10-01 9:14 ` [dpdk-dev] [PATCH v5 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-10-02 14:29 ` Olivier MATZ
2017-10-06 0:29 ` Thomas Monjalon
2017-10-06 3:31 ` santosh
2017-10-06 8:39 ` Thomas Monjalon
2017-10-06 7:45 ` [dpdk-dev] [PATCH v6 0/2] Dynamically configure mempool handle Santosh Shukla
2017-10-06 7:45 ` [dpdk-dev] [PATCH v6 1/2] eal: allow user to override default pool handle Santosh Shukla
2017-10-06 7:45 ` [dpdk-dev] [PATCH v6 2/2] ethdev: get the supported pool for a port Santosh Shukla
2017-10-06 18:58 ` [dpdk-dev] [PATCH v6 0/2] Dynamically configure mempool handle Thomas Monjalon
2017-10-01 9:14 ` [dpdk-dev] [PATCH v5 2/2] ethdev: get the supported pool for a port Santosh Shukla
2017-10-02 14:31 ` Olivier MATZ
2017-10-06 0:30 ` Thomas Monjalon
2017-10-06 3:32 ` santosh
2017-10-02 8:37 ` [dpdk-dev] [PATCH v5 0/2] Dynamically configure mempool handle santosh
2017-07-20 7:06 ` [dpdk-dev] [PATCH v2 2/2] ethdev: allow pmd to advertise pool handle Santosh Shukla
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