This patch enables the optimized calculation of CRC32-Ethernet and
CRC16-CCITT using the AVX512 and VPCLMULQDQ instruction sets. This CRC
implementation is built if the compiler supports the required instruction
sets. It is selected at run-time if the host CPU, again, supports the
required instruction sets.
Signed-off-by: Mairtin o Loingsigh <mairtin.oloingsigh@intel.com>
Signed-off-by: David Coyle <david.coyle@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Reviewed-by: Jasvinder Singh <jasvinder.singh@intel.com>
Reviewed-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
No need to let those (non RTE_ prefixed) defines public.
Hide them where we use them.
Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Added CRC compute APIs for arm64 utilizing the pmull
capability.
Added new file net_crc_neon.h to hold the arm64 pmull
CRC implementation.
Added wrappers in rte_vect.h for those neon intrinsics
which are not supported in GCC version < 7.
Verified the changes with crc_autotest unit test case
Signed-off-by: Ashwin Sekhar T K <ashwin.sekhar@caviumnetworks.com>
Acked-by: Jianbo Liu <jianbo.liu@linaro.org>
This commit addresses the following errors:
In file included from /tmp/check-includes.sh.18889.c:1:0:
build/include/rte_net_crc.h:86:1: error: unknown type name 'uint32_t'
[...]
Fixes: 986ff526fb84 ("net: add CRC computation API")
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Jasvinder Singh <jasvinder.singh@intel.com>
APIs for selecting the architecure specific implementation and computing
the crc (16-bit and 32-bit CRCs) are added. For CRCs calculation, scalar
as well as x86 intrinsic(sse4.2) versions are implemented.
The scalar version is based on generic Look-Up Table(LUT) algorithm,
while x86 intrinsic version uses carry-less multiplication for
fast CRC computation.
Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
