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();

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(-)

-- 
2.11.0