[dpdk-dev] [dpdk-dev v3 0/3] cryptodev: add symmetric crypto data-path APIs

[Fan Zhang <roy.fan.zhang@intel.com>]

This patch adds symmetric crypto data-path APIs for Cryptodev. Direct
symmetric crypto data-path APIs are a set of APIs that provide
more HW friendly enqueue/dequeue data-path functions as an alternative
approach to ``rte_cryptodev_enqueue_burst`` and
``rte_cryptodev_dequeue_burst``. The APIs are designed for external
libraries/applications that want to use Cryptodev as symmetric crypto
data-path accelerator but not necessarily mbuf data-path centric. With
the APIs the cycle cost spent on conversion from their data structure to
DPDK cryptodev operations/mbufs can be reduced, and the dependency on DPDK
crypto operation mempool can be relieved.

It is expected that the user can develop close-to-native performance
symmetric crypto data-path implementations with the functions provided
in this patchset.

Signed-off-by: Fan Zhang <roy.fan.zhang@intel.com>
Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com>

v3:
- Instead of QAT only API, moved the API to cryptodev
- Added cryptodev feature flags.

v2:
- Used a structure to simplify parameters.
- Added unit tests.
- Added documentation.

Fan Zhang (3):
  crypto/qat: add support to direct data-path APIs
  test/crypto: add unit-test for cryptodev direct APIs
  doc: add cryptodev direct APIs guide

 app/test/test_cryptodev.c               | 353 ++++++++++++-
 app/test/test_cryptodev.h               |   6 +
 app/test/test_cryptodev_blockcipher.c   |  50 +-
 doc/guides/prog_guide/cryptodev_lib.rst | 266 ++++++++++
 doc/guides/rel_notes/release_20_08.rst  |   8 +
 drivers/common/qat/Makefile             |   2 +
 drivers/common/qat/qat_qp.c             |   4 +-
 drivers/common/qat/qat_qp.h             |   3 +
 drivers/crypto/qat/meson.build          |   1 +
 drivers/crypto/qat/qat_sym.c            |   1 -
 drivers/crypto/qat/qat_sym_job.c        | 661 ++++++++++++++++++++++++
 drivers/crypto/qat/qat_sym_job.h        |  12 +
 drivers/crypto/qat/qat_sym_pmd.c        |   7 +-
 13 files changed, 1332 insertions(+), 42 deletions(-)
 create mode 100644 drivers/crypto/qat/qat_sym_job.c
 create mode 100644 drivers/crypto/qat/qat_sym_job.h

-- 
2.20.1