X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Fmsg%2Fasync%2Fdpdk%2FIPChecksum.cc;fp=src%2Fceph%2Fsrc%2Fmsg%2Fasync%2Fdpdk%2FIPChecksum.cc;h=0000000000000000000000000000000000000000;hb=7da45d65be36d36b880cc55c5036e96c24b53f00;hp=5048a6902b2f8f80f7a95d26bd1d0698807de660;hpb=691462d09d0987b47e112d6ee8740375df3c51b2;p=stor4nfv.git diff --git a/src/ceph/src/msg/async/dpdk/IPChecksum.cc b/src/ceph/src/msg/async/dpdk/IPChecksum.cc deleted file mode 100644 index 5048a69..0000000 --- a/src/ceph/src/msg/async/dpdk/IPChecksum.cc +++ /dev/null @@ -1,83 +0,0 @@ -// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- -/* - * This file is open source software, licensed to you under the terms - * of the Apache License, Version 2.0 (the "License"). See the NOTICE file - * distributed with this work for additional information regarding copyright - * ownership. 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. - */ -/* - * Copyright (C) 2014 Cloudius Systems, Ltd. - */ -/* - * Ceph - scalable distributed file system - * - * Copyright (C) 2015 XSky - * - * Author: Haomai Wang - * - * This is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License version 2.1, as published by the Free Software - * Foundation. See file COPYING. - * - */ - -#include -#include "net.h" -#include "IPChecksum.h" - -void checksummer::sum(const char* data, size_t len) { - auto orig_len = len; - if (odd) { - csum += uint8_t(*data++); - --len; - } - auto p64 = reinterpret_cast(data); - while (len >= 8) { - csum += ntohq(*p64++); - len -= 8; - } - auto p16 = reinterpret_cast(p64); - while (len >= 2) { - csum += ntohs(*p16++); - len -= 2; - } - auto p8 = reinterpret_cast(p16); - if (len) { - csum += *p8++ << 8; - len -= 1; - } - odd ^= orig_len & 1; -} - -uint16_t checksummer::get() const { - __int128 csum1 = (csum & 0xffffffffffffffff) + (csum >> 64); - uint64_t csum = (csum1 & 0xffffffffffffffff) + (csum1 >> 64); - csum = (csum & 0xffff) + ((csum >> 16) & 0xffff) + ((csum >> 32) & 0xffff) + (csum >> 48); - csum = (csum & 0xffff) + (csum >> 16); - csum = (csum & 0xffff) + (csum >> 16); - return htons(~csum); -} - -void checksummer::sum(const Packet& p) { - for (auto&& f : p.fragments()) { - sum(f.base, f.size); - } -} - -uint16_t ip_checksum(const void* data, size_t len) { - checksummer cksum; - cksum.sum(reinterpret_cast(data), len); - return cksum.get(); -}