[dpdk-dev] [PATCH v5 0/5] compress: add ZLIB compression PMD

[Shally Verma <shally.verma@caviumnetworks.com>]

This patch series add software zlib library (http://zlib.net/)
based compression PMD in DPDK compress drivers.

Application must need to install zlib prior to enabling
this PMD to avail compression/decompression services.
Currently driver only tested for deflate, stateless
compression and decompression with direct buffers.

Changes in v5:
- removed scatter-gather support as not fully tested
- add return code check from compressdev_pmd_parse_args

TBDs:
- revisit macro to inline conversion for COMPUTE_DST_BUF

Changes in v4:
- fixed -Wimplcit-fall-through compilation
  issue with gcc-7+ toolchain

Changes in v3:
- added comp_feature_flags to compressdev_capabilities
- removed stream_create as stateful not supported
- changed compression strategy to DEFAULT_STRATEGY
- Simplified core processing logic
- fix doc build error
- other v2 feedbacks

TBDs
- No change to current qp enqueue_err stats update.
- PMD increment enqd_err stats, if it fails to push op
  into completion queue. This logic to be revisited based on
  further discussion
- Replace COMPUTE_BUF macro with inline

Changes in v2:
- removed unused variables
- corrected capability to reflect current support
- add lookup for internally maintained mempool during device_configure
- optimized core compression/decompression logic in enq/deq APIs
- updated documentation with correct feature support

v1 includes:
- build changes to build zlib PMD
- zlib PMD implementation
- zlib PMD documentation
- meson build support

This patchset is dependent upon compressdev API.

Ashish Gupta (2):
  compress/zlib: add ZLIB PMD
  compress/zlib: add device PMD ops

Shally Verma (1):
  doc: add ZLIB PMD guide

Sunila Sahu (2):
  compress/zlib: create private xform
  compress/zlib: support burst enqueue/dequeue

 MAINTAINERS                                    |   5 +
 config/common_base                             |   5 +
 doc/guides/compressdevs/features/zlib.ini      |  10 +
 doc/guides/compressdevs/index.rst              |   1 +
 doc/guides/compressdevs/zlib.rst               |  69 ++++
 drivers/compress/Makefile                      |   1 +
 drivers/compress/meson.build                   |   2 +-
 drivers/compress/zlib/Makefile                 |  29 ++
 drivers/compress/zlib/meson.build              |  14 +
 drivers/compress/zlib/rte_pmd_zlib_version.map |   3 +
 drivers/compress/zlib/zlib_pmd.c               | 436 +++++++++++++++++++++++++
 drivers/compress/zlib/zlib_pmd_ops.c           | 307 +++++++++++++++++
 drivers/compress/zlib/zlib_pmd_private.h       |  71 ++++
 mk/rte.app.mk                                  |   2 +
 14 files changed, 954 insertions(+), 1 deletion(-)
 create mode 100644 doc/guides/compressdevs/features/zlib.ini
 create mode 100644 doc/guides/compressdevs/zlib.rst
 create mode 100644 drivers/compress/zlib/Makefile
 create mode 100644 drivers/compress/zlib/meson.build
 create mode 100644 drivers/compress/zlib/rte_pmd_zlib_version.map
 create mode 100644 drivers/compress/zlib/zlib_pmd.c
 create mode 100644 drivers/compress/zlib/zlib_pmd_ops.c
 create mode 100644 drivers/compress/zlib/zlib_pmd_private.h

-- 
2.9.5