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From: Mairtin o Loingsigh <mairtin.oloingsigh@intel.com>
To: jasvinder.singh@intel.com, bruce.richardson@intel.com,
	pablo.de.lara.guarch@intel.com
Cc: dev@dpdk.org, brendan.ryan@intel.com, david.coyle@intel.com,
	Mairtin o Loingsigh <mairtin.oloingsigh@intel.com>
Subject: [dpdk-dev] [PATCH v2 0/2] net: add CRC run-time checks and AVX512/VPCLMULQDQ based CRC
Date: Tue, 29 Sep 2020 16:12:44 +0100	[thread overview]
Message-ID: <1601392366-22625-1-git-send-email-mairtin.oloingsigh@intel.com> (raw)
In-Reply-To: <1599739271-16605-1-git-send-email-mairtin.oloingsigh@intel.com>

This patchset makes two significant enhancements to the CRC modules of
the rte_net library:

1) Adds run-time selection of the optimal architecture-specific CRC path.
   Previously the selection was solely made at compile-time, meaning it
   could only be built and run on the same generation of CPU. Adding
   run-time selection ability means this can be used from distro packages
   and/or DPDK can be compiled on an older CPU and run on a newer CPU.
2) Adds an optimized CRC implementation based on the AVX512 and
   VPCLMULQDQ instruction sets.
   
For further details, please see the commit messages of the individual
patches.

v2:
* Added support for run-time selection of optimal architecture-specific
  CRC, based on v1 review comment.
* Added full working AVX512/VPCLMULDQD support for CRC32-Ethernet and
  CRC16-CCITT.

v1:
* Initial version, with incomplete AVX512/VPCLMULDQD support for
  CRC32-Ethernet only.

Mairtin o Loingsigh (2):
  net: add run-time architecture specific CRC selection
  net: add support for AVX512/VPCLMULQDQ based CRC

 app/test/test_crc.c                               |  11 +-
 config/x86/meson.build                            |   6 +-
 doc/guides/rel_notes/release_20_11.rst            |   6 +
 lib/librte_net/meson.build                        |  89 ++++-
 lib/librte_net/net_crc.h                          |  45 +++
 lib/librte_net/net_crc_avx512.c                   | 424 ++++++++++++++++++++++
 lib/librte_net/{net_crc_neon.h => net_crc_neon.c} |  27 +-
 lib/librte_net/{net_crc_sse.h => net_crc_sse.c}   |  34 +-
 lib/librte_net/rte_net_crc.c                      | 100 +++--
 lib/librte_net/rte_net_crc.h                      |   4 +-
 10 files changed, 674 insertions(+), 72 deletions(-)
 create mode 100644 lib/librte_net/net_crc.h
 create mode 100644 lib/librte_net/net_crc_avx512.c
 rename lib/librte_net/{net_crc_neon.h => net_crc_neon.c} (95%)
 rename lib/librte_net/{net_crc_sse.h => net_crc_sse.c} (94%)

-- 
2.12.3


  parent reply	other threads:[~2020-09-29 15:13 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-10 12:01 [dpdk-dev] [PATCH] net: add support for AVX512 when generating CRC Mairtin o Loingsigh
2020-09-10 12:27 ` Bruce Richardson
2020-09-10 12:52   ` O'loingsigh, Mairtin
2020-09-29 15:45   ` O'loingsigh, Mairtin
2020-09-11  9:57 ` De Lara Guarch, Pablo
2020-09-29 15:47   ` O'loingsigh, Mairtin
2020-09-29 15:12 ` Mairtin o Loingsigh [this message]
2020-09-29 15:41   ` [dpdk-dev] [PATCH v2 0/2] net: add CRC run-time checks and AVX512/VPCLMULQDQ based CRC O'loingsigh, Mairtin
2020-09-29 15:12 ` [dpdk-dev] [PATCH v2 1/2] net: add run-time architecture specific CRC selection Mairtin o Loingsigh
2020-09-29 15:12 ` [dpdk-dev] [PATCH v2 2/2] net: add support for AVX512/VPCLMULQDQ based CRC Mairtin o Loingsigh

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