[dpdk-dev] [PATCH v1 0/4] net/mlx: make rdma-core optional at run-time

[Adrien Mazarguil]

A problem encountered with Mellanox PMDs and frequently reported by DPDK
application developers and Linux distribution package maintainers is their
dependency on rdma-core components, namely libibverbs, libmlx4, and libmlx5.

For best performance in applications, DPDK is normally built as a collection
of library archives (.a files), whose external dependencies are inherited
through rte.app.mk during link.

When these PMDs are built-in, any binary DPDK package, whether DPDK itself
or derived applications, always have to pull rdma-core. This dependency is
not obvious and may be missed during the packaging of any intermediate layer
between DPDK itself and the end application.

While still required during compilation, this series trades this hard
dependency for an optional one, dynamically loaded at run-time through
dlopen().

It supersedes Shachar's previous work on the same topic [1] using a
different approach in order to preserve symbol versioning and address
the remaining issues.

[1] http://dpdk.org/ml/archives/dev/2017-December/085090.html

Adrien Mazarguil (3):
  net/mlx4: move rdma-core calls to separate file
  net/mlx4: spawn rdma-core dependency plug-in
  net/mlx5: spawn rdma-core dependency plug-in

Nelio Laranjeiro (1):
  net/mlx5: move rdma-core calls to separate file

 drivers/net/mlx4/Makefile        |  41 +++++
 drivers/net/mlx4/mlx4.c          | 115 ++++++++++--
 drivers/net/mlx4/mlx4_ethdev.c   |   3 +-
 drivers/net/mlx4/mlx4_flow.c     |  32 ++--
 drivers/net/mlx4/mlx4_glue.c     | 275 ++++++++++++++++++++++++++++
 drivers/net/mlx4/mlx4_glue.h     |  80 +++++++++
 drivers/net/mlx4/mlx4_intr.c     |  10 +-
 drivers/net/mlx4/mlx4_mr.c       |   7 +-
 drivers/net/mlx4/mlx4_rxq.c      |  53 +++---
 drivers/net/mlx4/mlx4_txq.c      |  17 +-
 drivers/net/mlx5/Makefile        |  41 +++++
 drivers/net/mlx5/mlx5.c          | 127 ++++++++++---
 drivers/net/mlx5/mlx5_ethdev.c   |   7 +-
 drivers/net/mlx5/mlx5_flow.c     |  71 ++++----
 drivers/net/mlx5/mlx5_glue.c     | 328 ++++++++++++++++++++++++++++++++++
 drivers/net/mlx5/mlx5_glue.h     | 100 +++++++++++
 drivers/net/mlx5/mlx5_mac.c      |   1 +
 drivers/net/mlx5/mlx5_mr.c       |   7 +-
 drivers/net/mlx5/mlx5_rss.c      |   1 +
 drivers/net/mlx5/mlx5_rxmode.c   |   1 +
 drivers/net/mlx5/mlx5_rxq.c      |  54 +++---
 drivers/net/mlx5/mlx5_rxtx.c     |   1 +
 drivers/net/mlx5/mlx5_rxtx.h     |   1 +
 drivers/net/mlx5/mlx5_rxtx_vec.c |   1 +
 drivers/net/mlx5/mlx5_txq.c      |  22 +--
 drivers/net/mlx5/mlx5_vlan.c     |   2 +-
 mk/rte.app.mk                    |   2 +-
 27 files changed, 1221 insertions(+), 179 deletions(-)
 create mode 100644 drivers/net/mlx4/mlx4_glue.c
 create mode 100644 drivers/net/mlx4/mlx4_glue.h
 create mode 100644 drivers/net/mlx5/mlx5_glue.c
 create mode 100644 drivers/net/mlx5/mlx5_glue.h

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2.11.0