From 7286b2518ec8e4398b512ce95def9166a7af2e4a Mon Sep 17 00:00:00 2001 From: Deepak S Date: Thu, 13 Jul 2017 21:26:50 -0700 Subject: Adding PROX(Packet pROcessing eXecution engine) VNF to sampleVNF JIRA: SAMPLEVNF-55 PROX is a DPDK-based application implementing Telco use-cases such as a simplified BRAS/BNG, light-weight AFTR... It also allows configuring finer grained network functions like QoS, Routing, load-balancing... (We are moving PROX version v039 to sampleVNF https://01.org/intel-data-plane-performance-demonstrators/prox-overview) Change-Id: Ia3cb02cf0e49ac5596e922c197ff7e010293d033 Signed-off-by: Deepak S --- VNFs/DPPD-PROX/tools/flow_extract/crc.hpp | 51 +++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 VNFs/DPPD-PROX/tools/flow_extract/crc.hpp (limited to 'VNFs/DPPD-PROX/tools/flow_extract/crc.hpp') diff --git a/VNFs/DPPD-PROX/tools/flow_extract/crc.hpp b/VNFs/DPPD-PROX/tools/flow_extract/crc.hpp new file mode 100644 index 00000000..713b4abd --- /dev/null +++ b/VNFs/DPPD-PROX/tools/flow_extract/crc.hpp @@ -0,0 +1,51 @@ +/* +// Copyright (c) 2010-2017 Intel Corporation +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +*/ + +#ifndef _CRC_H_ +#define _CRC_H_ + +static uint32_t crc32(const uint8_t *buf, size_t len, int init) +{ + uint32_t ret = init; + + while (len/8) { + ret = __builtin_ia32_crc32di(ret, *((uint64_t*)buf)); + len -= 8; + buf += 8; + } + + while (len/4) { + ret = __builtin_ia32_crc32si(ret, *((uint32_t*)buf)); + len -= 4; + buf += 4; + } + + while (len/2) { + ret = __builtin_ia32_crc32hi(ret, *((uint16_t*)buf)); + len -= 2; + buf += 2; + } + + while (len) { + ret = __builtin_ia32_crc32qi(ret, *((uint8_t*)buf)); + len -= 1; + buf += 1; + } + + return ret; +} + +#endif /* _CRC_H_ */ -- cgit 1.2.3-korg