[0/2] add head/tailroom requirement for crypto PMDs
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Message ID 1529389574-6643-1-git-send-email-anoob.joseph@caviumnetworks.com
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  • add head/tailroom requirement for crypto PMDs
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Anoob Joseph June 19, 2018, 6:26 a.m. UTC
This series adds the ability, for crypto PMDs, to communicate the
minimum head/tailroom requirement it may have, using the existing
cryptodev_info framework.

The availability and use of head/tailroom is an optimisation if the
hardware supports its use for crypto-op info. Devices that do not
support using the head/tailroom, can continue to operate without
any performance-drop.

Cavium's CPT hardware supports this feature and would use headroom and
tailroom for submitting crypto-ops to the hardware.

Anoob Joseph (2):
  cryptodev: add min headroom and tailroom requirement
  app/crypto-perf: honour cryptodev's min headroom/tailroom

 app/test-crypto-perf/cperf_options.h     |  2 ++
 app/test-crypto-perf/cperf_test_common.c | 33 +++++++++++++++++++++-----------
 app/test-crypto-perf/main.c              | 17 ++++++++++++++++
 doc/guides/rel_notes/deprecation.rst     |  4 ++++
 lib/librte_cryptodev/rte_cryptodev.h     |  6 ++++++
 5 files changed, 51 insertions(+), 11 deletions(-)